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authorStefan Hajnoczi <stefanha@redhat.com>2025-05-05 11:26:47 -0400
committerStefan Hajnoczi <stefanha@redhat.com>2025-05-05 11:26:47 -0400
commitdc1ed8f256c446cbf33e090f0e214d0311a771a7 (patch)
treee693365000225a671eccf7fad90b2b04d7a6f348
parentb6f568262b48ca0cb3dc018909908017551b5679 (diff)
parent03f50d7ee756eecbd4481c3008b5e01e999729c7 (diff)
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* rust: support migration of HPET device * target/i386/hvf: fix compilation errors * target/i386/tcg: fix some interrupt shadow cases * hw/char/serial: remove unused prog_if compat property * rust: centralize config in workspace root * monitor: fix race on exiting QEMU # -----BEGIN PGP SIGNATURE----- # # iQFIBAABCgAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmgVQzkUHHBib256aW5p # QHJlZGhhdC5jb20ACgkQv/vSX3jHroOR8Af/Tke7kRZQyvoKURaKpVOBgP91fTQu # IKwmX1OYe9JMPBwZV5g/++2HSaAddDzkFq90gmgTY+hpvRE3kDWOA86QtDRP4LKa # Oq3yW48yrFiRZBAxERgRxRCsEvzlPC3cAEqCQd4fTL+cW6NVorbj4x/tQcALb47V # cgXXVp59TW4lJk7nJUjd0mCFK1qEoIbZuuBgMn32K+fpBV/UghcoImT2giMeM24Y # WW3olrLA9UN2fh5da7923WUvA9mSjnE0Yfdk6eKC3nCzlgMKktofwKHilm0tA6xA # 7sJbwYTDSB9QxgnNw3WvAFAOMapJmedaSNorZdmcxCss7ed0s8hV8am9vQ== # =LFS/ # -----END PGP SIGNATURE----- # gpg: Signature made Fri 02 May 2025 18:12:09 EDT # gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83 # gpg: issuer "pbonzini@redhat.com" # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full] # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full] # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * tag 'for-upstream' of https://gitlab.com/bonzini/qemu: monitor: don't wake up qmp_dispatcher_co coroutine upon cleanup rust: centralize config in workspace root hw/char/serial: Remove unused prog_if compat property target/i386: do not block singlestep for STI target/i386: do not trigger IRQ shadow for LSS target/i386/hvf: fix a compilation error target/i386/emulate: remove rflags leftovers rust/hpet: Support migration rust/timer: Define NANOSECONDS_PER_SECOND binding as u64 rust/vmstate_test: Test varray with num field wrapped in BqlCell rust: assertions: Support index field wrapped in BqlCell vmstate: support varray for vmstate_clock! rust/vmstate: Add support for field_exists checks Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-rw-r--r--docs/devel/rust.rst3
-rw-r--r--hw/char/diva-gsp.c6
-rw-r--r--hw/char/serial-pci-multi.c7
-rw-r--r--hw/char/serial-pci.c10
-rw-r--r--monitor/qmp.c3
-rw-r--r--rust/Cargo.toml7
-rw-r--r--rust/hw/char/pl011/Cargo.toml11
-rw-r--r--rust/hw/timer/hpet/Cargo.toml9
-rw-r--r--rust/hw/timer/hpet/src/hpet.rs146
-rw-r--r--rust/qemu-api-macros/Cargo.toml11
-rw-r--r--rust/qemu-api/Cargo.toml15
-rw-r--r--rust/qemu-api/src/assertions.rs25
-rw-r--r--rust/qemu-api/src/timer.rs2
-rw-r--r--rust/qemu-api/src/vmstate.rs83
-rw-r--r--rust/qemu-api/tests/vmstate_tests.rs41
-rw-r--r--target/i386/emulate/x86_decode.c17
-rw-r--r--target/i386/hvf/hvf.c1
-rw-r--r--target/i386/tcg/emit.c.inc4
-rw-r--r--target/i386/tcg/translate.c33
19 files changed, 307 insertions, 127 deletions
diff --git a/docs/devel/rust.rst b/docs/devel/rust.rst
index 88bdec1..3cc2841 100644
--- a/docs/devel/rust.rst
+++ b/docs/devel/rust.rst
@@ -153,8 +153,7 @@ QEMU includes four crates:
.. [#issues] The ``pl011`` crate is synchronized with ``hw/char/pl011.c``
as of commit 02b1f7f61928. The ``hpet`` crate is synchronized as of
- commit f32352ff9e. Both are lacking tracing functionality; ``hpet``
- is also lacking support for migration.
+ commit 1433e38cc8. Both are lacking tracing functionality.
This section explains how to work with them.
diff --git a/hw/char/diva-gsp.c b/hw/char/diva-gsp.c
index 60f9331..e1f0713 100644
--- a/hw/char/diva-gsp.c
+++ b/hw/char/diva-gsp.c
@@ -51,7 +51,6 @@ typedef struct PCIDivaSerialState {
SerialState state[PCI_SERIAL_MAX_PORTS];
uint32_t level[PCI_SERIAL_MAX_PORTS];
qemu_irq *irqs;
- uint8_t prog_if;
bool disable;
} PCIDivaSerialState;
@@ -124,8 +123,8 @@ static void diva_pci_realize(PCIDevice *dev, Error **errp)
size_t i, offset = 0;
size_t portmask = di.omask;
- pci->dev.config[PCI_CLASS_PROG] = pci->prog_if;
- pci->dev.config[PCI_INTERRUPT_PIN] = 0x01;
+ pci->dev.config[PCI_CLASS_PROG] = 2; /* 16550 compatible */
+ pci->dev.config[PCI_INTERRUPT_PIN] = 1;
memory_region_init(&pci->membar, OBJECT(pci), "serial_ports", 4096);
pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &pci->membar);
pci->irqs = qemu_allocate_irqs(multi_serial_irq_mux, pci, di.nports);
@@ -178,7 +177,6 @@ static const Property diva_serial_properties[] = {
DEFINE_PROP_CHR("chardev2", PCIDivaSerialState, state[1].chr),
DEFINE_PROP_CHR("chardev3", PCIDivaSerialState, state[2].chr),
DEFINE_PROP_CHR("chardev4", PCIDivaSerialState, state[3].chr),
- DEFINE_PROP_UINT8("prog_if", PCIDivaSerialState, prog_if, 0x02),
DEFINE_PROP_UINT32("subvendor", PCIDivaSerialState, subvendor,
PCI_DEVICE_ID_HP_DIVA_TOSCA1),
};
diff --git a/hw/char/serial-pci-multi.c b/hw/char/serial-pci-multi.c
index fb184c2..13df272 100644
--- a/hw/char/serial-pci-multi.c
+++ b/hw/char/serial-pci-multi.c
@@ -46,7 +46,6 @@ typedef struct PCIMultiSerialState {
SerialState state[PCI_SERIAL_MAX_PORTS];
uint32_t level[PCI_SERIAL_MAX_PORTS];
IRQState irqs[PCI_SERIAL_MAX_PORTS];
- uint8_t prog_if;
} PCIMultiSerialState;
static void multi_serial_pci_exit(PCIDevice *dev)
@@ -97,8 +96,8 @@ static void multi_serial_pci_realize(PCIDevice *dev, Error **errp)
SerialState *s;
size_t i, nports = multi_serial_get_port_count(pc);
- pci->dev.config[PCI_CLASS_PROG] = pci->prog_if;
- pci->dev.config[PCI_INTERRUPT_PIN] = 0x01;
+ pci->dev.config[PCI_CLASS_PROG] = 2; /* 16550 compatible */
+ pci->dev.config[PCI_INTERRUPT_PIN] = 1;
memory_region_init(&pci->iobar, OBJECT(pci), "multiserial", 8 * nports);
pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &pci->iobar);
@@ -133,7 +132,6 @@ static const VMStateDescription vmstate_pci_multi_serial = {
static const Property multi_2x_serial_pci_properties[] = {
DEFINE_PROP_CHR("chardev1", PCIMultiSerialState, state[0].chr),
DEFINE_PROP_CHR("chardev2", PCIMultiSerialState, state[1].chr),
- DEFINE_PROP_UINT8("prog_if", PCIMultiSerialState, prog_if, 0x02),
};
static const Property multi_4x_serial_pci_properties[] = {
@@ -141,7 +139,6 @@ static const Property multi_4x_serial_pci_properties[] = {
DEFINE_PROP_CHR("chardev2", PCIMultiSerialState, state[1].chr),
DEFINE_PROP_CHR("chardev3", PCIMultiSerialState, state[2].chr),
DEFINE_PROP_CHR("chardev4", PCIMultiSerialState, state[3].chr),
- DEFINE_PROP_UINT8("prog_if", PCIMultiSerialState, prog_if, 0x02),
};
static void multi_2x_serial_pci_class_initfn(ObjectClass *klass,
diff --git a/hw/char/serial-pci.c b/hw/char/serial-pci.c
index 8707e81..46efabc 100644
--- a/hw/char/serial-pci.c
+++ b/hw/char/serial-pci.c
@@ -38,7 +38,6 @@
struct PCISerialState {
PCIDevice dev;
SerialState state;
- uint8_t prog_if;
};
#define TYPE_PCI_SERIAL "pci-serial"
@@ -53,8 +52,8 @@ static void serial_pci_realize(PCIDevice *dev, Error **errp)
return;
}
- pci->dev.config[PCI_CLASS_PROG] = pci->prog_if;
- pci->dev.config[PCI_INTERRUPT_PIN] = 0x01;
+ pci->dev.config[PCI_CLASS_PROG] = 2; /* 16550 compatible */
+ pci->dev.config[PCI_INTERRUPT_PIN] = 1;
s->irq = pci_allocate_irq(&pci->dev);
memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s, "serial", 8);
@@ -81,10 +80,6 @@ static const VMStateDescription vmstate_pci_serial = {
}
};
-static const Property serial_pci_properties[] = {
- DEFINE_PROP_UINT8("prog_if", PCISerialState, prog_if, 0x02),
-};
-
static void serial_pci_class_initfn(ObjectClass *klass, const void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
@@ -96,7 +91,6 @@ static void serial_pci_class_initfn(ObjectClass *klass, const void *data)
pc->revision = 1;
pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL;
dc->vmsd = &vmstate_pci_serial;
- device_class_set_props(dc, serial_pci_properties);
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
}
diff --git a/monitor/qmp.c b/monitor/qmp.c
index 2f46cf9..cb99a12 100644
--- a/monitor/qmp.c
+++ b/monitor/qmp.c
@@ -356,7 +356,8 @@ void qmp_dispatcher_co_wake(void)
/* Write request before reading qmp_dispatcher_co_busy. */
smp_mb__before_rmw();
- if (!qatomic_xchg(&qmp_dispatcher_co_busy, true)) {
+ if (!qatomic_xchg(&qmp_dispatcher_co_busy, true) &&
+ qatomic_read(&qmp_dispatcher_co)) {
aio_co_wake(qmp_dispatcher_co);
}
}
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index ab1185a..5ace47c 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -7,6 +7,13 @@ members = [
"hw/timer/hpet",
]
+[workspace.package]
+edition = "2021"
+homepage = "https://www.qemu.org"
+license = "GPL-2.0-or-later"
+repository = "https://gitlab.com/qemu-project/qemu/"
+rust-version = "1.63.0"
+
[workspace.lints.rust]
unexpected_cfgs = { level = "deny", check-cfg = [
'cfg(MESON)', 'cfg(HAVE_GLIB_WITH_ALIGNED_ALLOC)',
diff --git a/rust/hw/char/pl011/Cargo.toml b/rust/hw/char/pl011/Cargo.toml
index f2296ca..a1f431a 100644
--- a/rust/hw/char/pl011/Cargo.toml
+++ b/rust/hw/char/pl011/Cargo.toml
@@ -1,15 +1,16 @@
[package]
name = "pl011"
version = "0.1.0"
-edition = "2021"
authors = ["Manos Pitsidianakis <manos.pitsidianakis@linaro.org>"]
-license = "GPL-2.0-or-later"
description = "pl011 device model for QEMU"
resolver = "2"
publish = false
-keywords = []
-categories = []
-rust-version = "1.63.0"
+
+edition.workspace = true
+homepage.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
[lib]
crate-type = ["staticlib"]
diff --git a/rust/hw/timer/hpet/Cargo.toml b/rust/hw/timer/hpet/Cargo.toml
index 147f216..6f07502 100644
--- a/rust/hw/timer/hpet/Cargo.toml
+++ b/rust/hw/timer/hpet/Cargo.toml
@@ -1,11 +1,14 @@
[package]
name = "hpet"
version = "0.1.0"
-edition = "2021"
authors = ["Zhao Liu <zhao1.liu@intel.com>"]
-license = "GPL-2.0-or-later"
description = "IA-PC High Precision Event Timer emulation in Rust"
-rust-version = "1.63.0"
+
+edition.workspace = true
+homepage.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
[lib]
crate-type = ["staticlib"]
diff --git a/rust/hw/timer/hpet/src/hpet.rs b/rust/hw/timer/hpet/src/hpet.rs
index cbd2ed4..12de2ba 100644
--- a/rust/hw/timer/hpet/src/hpet.rs
+++ b/rust/hw/timer/hpet/src/hpet.rs
@@ -4,6 +4,7 @@
use std::{
ffi::CStr,
+ os::raw::{c_int, c_void},
pin::Pin,
ptr::{addr_of_mut, null_mut, NonNull},
slice::from_ref,
@@ -25,7 +26,10 @@ use qemu_api::{
qom::{ObjectImpl, ObjectType, ParentField},
qom_isa,
sysbus::{SysBusDevice, SysBusDeviceImpl},
- timer::{Timer, CLOCK_VIRTUAL},
+ timer::{Timer, CLOCK_VIRTUAL, NANOSECONDS_PER_SECOND},
+ vmstate::VMStateDescription,
+ vmstate_fields, vmstate_of, vmstate_struct, vmstate_subsections, vmstate_validate,
+ zeroable::Zeroable,
};
use crate::fw_cfg::HPETFwConfig;
@@ -561,6 +565,7 @@ pub struct HPETState {
#[doc(alias = "timer")]
timers: [BqlRefCell<HPETTimer>; HPET_MAX_TIMERS as usize],
num_timers: BqlCell<u8>,
+ num_timers_save: BqlCell<u8>,
/// Instance id (HPET timer block ID).
hpet_id: BqlCell<usize>,
@@ -839,6 +844,49 @@ impl HPETState {
}
}
}
+
+ fn pre_save(&self) -> i32 {
+ if self.is_hpet_enabled() {
+ self.counter.set(self.get_ticks());
+ }
+
+ /*
+ * The number of timers must match on source and destination, but it was
+ * also added to the migration stream. Check that it matches the value
+ * that was configured.
+ */
+ self.num_timers_save.set(self.num_timers.get());
+ 0
+ }
+
+ fn post_load(&self, _version_id: u8) -> i32 {
+ for timer in self.timers.iter().take(self.get_num_timers()) {
+ let mut t = timer.borrow_mut();
+
+ t.cmp64 = t.calculate_cmp64(t.get_state().counter.get(), t.cmp);
+ t.last = CLOCK_VIRTUAL.get_ns() - NANOSECONDS_PER_SECOND;
+ }
+
+ // Recalculate the offset between the main counter and guest time
+ if !self.hpet_offset_saved {
+ self.hpet_offset
+ .set(ticks_to_ns(self.counter.get()) - CLOCK_VIRTUAL.get_ns());
+ }
+
+ 0
+ }
+
+ fn is_rtc_irq_level_needed(&self) -> bool {
+ self.rtc_irq_level.get() != 0
+ }
+
+ fn is_offset_needed(&self) -> bool {
+ self.is_hpet_enabled() && self.hpet_offset_saved
+ }
+
+ fn validate_num_timers(&self, _version_id: u8) -> bool {
+ self.num_timers.get() == self.num_timers_save.get()
+ }
}
qom_isa!(HPETState: SysBusDevice, DeviceState, Object);
@@ -895,11 +943,107 @@ qemu_api::declare_properties! {
),
}
+unsafe extern "C" fn hpet_rtc_irq_level_needed(opaque: *mut c_void) -> bool {
+ // SAFETY:
+ // the pointer is convertible to a reference
+ let state: &HPETState = unsafe { NonNull::new(opaque.cast::<HPETState>()).unwrap().as_ref() };
+ state.is_rtc_irq_level_needed()
+}
+
+unsafe extern "C" fn hpet_offset_needed(opaque: *mut c_void) -> bool {
+ // SAFETY:
+ // the pointer is convertible to a reference
+ let state: &HPETState = unsafe { NonNull::new(opaque.cast::<HPETState>()).unwrap().as_ref() };
+ state.is_offset_needed()
+}
+
+unsafe extern "C" fn hpet_pre_save(opaque: *mut c_void) -> c_int {
+ // SAFETY:
+ // the pointer is convertible to a reference
+ let state: &mut HPETState =
+ unsafe { NonNull::new(opaque.cast::<HPETState>()).unwrap().as_mut() };
+ state.pre_save() as c_int
+}
+
+unsafe extern "C" fn hpet_post_load(opaque: *mut c_void, version_id: c_int) -> c_int {
+ // SAFETY:
+ // the pointer is convertible to a reference
+ let state: &mut HPETState =
+ unsafe { NonNull::new(opaque.cast::<HPETState>()).unwrap().as_mut() };
+ let version: u8 = version_id.try_into().unwrap();
+ state.post_load(version) as c_int
+}
+
+static VMSTATE_HPET_RTC_IRQ_LEVEL: VMStateDescription = VMStateDescription {
+ name: c_str!("hpet/rtc_irq_level").as_ptr(),
+ version_id: 1,
+ minimum_version_id: 1,
+ needed: Some(hpet_rtc_irq_level_needed),
+ fields: vmstate_fields! {
+ vmstate_of!(HPETState, rtc_irq_level),
+ },
+ ..Zeroable::ZERO
+};
+
+static VMSTATE_HPET_OFFSET: VMStateDescription = VMStateDescription {
+ name: c_str!("hpet/offset").as_ptr(),
+ version_id: 1,
+ minimum_version_id: 1,
+ needed: Some(hpet_offset_needed),
+ fields: vmstate_fields! {
+ vmstate_of!(HPETState, hpet_offset),
+ },
+ ..Zeroable::ZERO
+};
+
+static VMSTATE_HPET_TIMER: VMStateDescription = VMStateDescription {
+ name: c_str!("hpet_timer").as_ptr(),
+ version_id: 1,
+ minimum_version_id: 1,
+ fields: vmstate_fields! {
+ vmstate_of!(HPETTimer, index),
+ vmstate_of!(HPETTimer, config),
+ vmstate_of!(HPETTimer, cmp),
+ vmstate_of!(HPETTimer, fsb),
+ vmstate_of!(HPETTimer, period),
+ vmstate_of!(HPETTimer, wrap_flag),
+ vmstate_of!(HPETTimer, qemu_timer),
+ },
+ ..Zeroable::ZERO
+};
+
+const VALIDATE_TIMERS_NAME: &CStr = c_str!("num_timers must match");
+
+static VMSTATE_HPET: VMStateDescription = VMStateDescription {
+ name: c_str!("hpet").as_ptr(),
+ version_id: 2,
+ minimum_version_id: 1,
+ pre_save: Some(hpet_pre_save),
+ post_load: Some(hpet_post_load),
+ fields: vmstate_fields! {
+ vmstate_of!(HPETState, config),
+ vmstate_of!(HPETState, int_status),
+ vmstate_of!(HPETState, counter),
+ vmstate_of!(HPETState, num_timers_save).with_version_id(2),
+ vmstate_validate!(HPETState, VALIDATE_TIMERS_NAME, HPETState::validate_num_timers),
+ vmstate_struct!(HPETState, timers[0 .. num_timers], &VMSTATE_HPET_TIMER, BqlRefCell<HPETTimer>, HPETState::validate_num_timers).with_version_id(0),
+ },
+ subsections: vmstate_subsections! {
+ VMSTATE_HPET_RTC_IRQ_LEVEL,
+ VMSTATE_HPET_OFFSET,
+ },
+ ..Zeroable::ZERO
+};
+
impl DeviceImpl for HPETState {
fn properties() -> &'static [Property] {
&HPET_PROPERTIES
}
+ fn vmsd() -> Option<&'static VMStateDescription> {
+ Some(&VMSTATE_HPET)
+ }
+
const REALIZE: Option<fn(&Self)> = Some(Self::realize);
}
diff --git a/rust/qemu-api-macros/Cargo.toml b/rust/qemu-api-macros/Cargo.toml
index 89dee1c..0cd40c8 100644
--- a/rust/qemu-api-macros/Cargo.toml
+++ b/rust/qemu-api-macros/Cargo.toml
@@ -1,15 +1,16 @@
[package]
name = "qemu_api_macros"
version = "0.1.0"
-edition = "2021"
authors = ["Manos Pitsidianakis <manos.pitsidianakis@linaro.org>"]
-license = "GPL-2.0-or-later"
description = "Rust bindings for QEMU - Utility macros"
resolver = "2"
publish = false
-keywords = []
-categories = []
-rust-version = "1.63.0"
+
+edition.workspace = true
+homepage.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
[lib]
proc-macro = true
diff --git a/rust/qemu-api/Cargo.toml b/rust/qemu-api/Cargo.toml
index 57747bc..ca1b042 100644
--- a/rust/qemu-api/Cargo.toml
+++ b/rust/qemu-api/Cargo.toml
@@ -1,18 +1,17 @@
[package]
name = "qemu_api"
version = "0.1.0"
-edition = "2021"
authors = ["Manos Pitsidianakis <manos.pitsidianakis@linaro.org>"]
-license = "GPL-2.0-or-later"
-readme = "README.md"
-homepage = "https://www.qemu.org"
description = "Rust bindings for QEMU"
-repository = "https://gitlab.com/qemu-project/qemu/"
+readme = "README.md"
resolver = "2"
publish = false
-keywords = []
-categories = []
-rust-version = "1.63.0"
+
+edition.workspace = true
+homepage.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
[dependencies]
qemu_api_macros = { path = "../qemu-api-macros" }
diff --git a/rust/qemu-api/src/assertions.rs b/rust/qemu-api/src/assertions.rs
index eb12e94..a2d38c8 100644
--- a/rust/qemu-api/src/assertions.rs
+++ b/rust/qemu-api/src/assertions.rs
@@ -78,33 +78,26 @@ macro_rules! assert_same_type {
/// ```
#[macro_export]
macro_rules! assert_field_type {
- ($t:ty, $i:tt, $ti:ty) => {
+ (@internal $param_name:ident, $ti:ty, $t:ty, $($field:tt)*) => {
const _: () = {
#[allow(unused)]
- fn assert_field_type(v: $t) {
- fn types_must_be_equal<T, U>(_: T)
+ fn assert_field_type($param_name: &$t) {
+ fn types_must_be_equal<T, U>(_: &T)
where
T: $crate::assertions::EqType<Itself = U>,
{
}
- types_must_be_equal::<_, $ti>(v.$i);
+ types_must_be_equal::<_, $ti>(&$($field)*);
}
};
};
+ ($t:ty, $i:tt, $ti:ty) => {
+ $crate::assert_field_type!(@internal v, $ti, $t, v.$i);
+ };
+
($t:ty, $i:tt, $ti:ty, num = $num:ident) => {
- const _: () = {
- #[allow(unused)]
- fn assert_field_type(v: $t) {
- fn types_must_be_equal<T, U>(_: T)
- where
- T: $crate::assertions::EqType<Itself = U>,
- {
- }
- let index: usize = v.$num.try_into().unwrap();
- types_must_be_equal::<_, &$ti>(&v.$i[index]);
- }
- };
+ $crate::assert_field_type!(@internal v, $ti, $t, v.$i[0]);
};
}
diff --git a/rust/qemu-api/src/timer.rs b/rust/qemu-api/src/timer.rs
index f0b04ef..e769f8b 100644
--- a/rust/qemu-api/src/timer.rs
+++ b/rust/qemu-api/src/timer.rs
@@ -121,3 +121,5 @@ impl ClockType {
pub const CLOCK_VIRTUAL: ClockType = ClockType {
id: QEMUClockType::QEMU_CLOCK_VIRTUAL,
};
+
+pub const NANOSECONDS_PER_SECOND: u64 = 1000000000;
diff --git a/rust/qemu-api/src/vmstate.rs b/rust/qemu-api/src/vmstate.rs
index 1b2b12e..9ae97c3 100644
--- a/rust/qemu-api/src/vmstate.rs
+++ b/rust/qemu-api/src/vmstate.rs
@@ -200,13 +200,14 @@ pub const fn vmstate_varray_flag<T: VMState>(_: PhantomData<T>) -> VMStateFlags
/// and [`impl_vmstate_forward!`](crate::impl_vmstate_forward) help with this.
#[macro_export]
macro_rules! vmstate_of {
- ($struct_name:ty, $field_name:ident $([0 .. $num:ident $(* $factor:expr)?])? $(,)?) => {
+ ($struct_name:ty, $field_name:ident $([0 .. $num:ident $(* $factor:expr)?])? $(, $test_fn:expr)? $(,)?) => {
$crate::bindings::VMStateField {
name: ::core::concat!(::core::stringify!($field_name), "\0")
.as_bytes()
.as_ptr() as *const ::std::os::raw::c_char,
offset: $crate::offset_of!($struct_name, $field_name),
$(num_offset: $crate::offset_of!($struct_name, $num),)?
+ $(field_exists: $crate::vmstate_exist_fn!($struct_name, $test_fn),)?
// The calls to `call_func_with_field!` are the magic that
// computes most of the VMStateField from the type of the field.
info: $crate::info_enum_to_ref!($crate::call_func_with_field!(
@@ -435,6 +436,38 @@ macro_rules! vmstate_unused {
}};
}
+pub extern "C" fn rust_vms_test_field_exists<T, F: for<'a> FnCall<(&'a T, u8), bool>>(
+ opaque: *mut c_void,
+ version_id: c_int,
+) -> bool {
+ // SAFETY: the opaque was passed as a reference to `T`.
+ let owner: &T = unsafe { &*(opaque.cast::<T>()) };
+ let version: u8 = version_id.try_into().unwrap();
+ F::call((owner, version))
+}
+
+pub type VMSFieldExistCb = unsafe extern "C" fn(
+ opaque: *mut std::os::raw::c_void,
+ version_id: std::os::raw::c_int,
+) -> bool;
+
+#[macro_export]
+macro_rules! vmstate_exist_fn {
+ ($struct_name:ty, $test_fn:expr) => {{
+ const fn test_cb_builder__<T, F: for<'a> $crate::callbacks::FnCall<(&'a T, u8), bool>>(
+ _phantom: ::core::marker::PhantomData<F>,
+ ) -> $crate::vmstate::VMSFieldExistCb {
+ let _: () = F::ASSERT_IS_SOME;
+ $crate::vmstate::rust_vms_test_field_exists::<T, F>
+ }
+
+ const fn phantom__<T>(_: &T) -> ::core::marker::PhantomData<T> {
+ ::core::marker::PhantomData
+ }
+ Some(test_cb_builder__::<$struct_name, _>(phantom__(&$test_fn)))
+ }};
+}
+
// FIXME: including the `vmsd` field in a `const` is not possible without
// the const_refs_static feature (stabilized in Rust 1.83.0). Without it,
// it is not possible to use VMS_STRUCT in a transparent manner using
@@ -445,7 +478,7 @@ macro_rules! vmstate_unused {
#[doc(alias = "VMSTATE_STRUCT")]
#[macro_export]
macro_rules! vmstate_struct {
- ($struct_name:ty, $field_name:ident $([0 .. $num:ident $(* $factor:expr)?])?, $vmsd:expr, $type:ty $(,)?) => {
+ ($struct_name:ty, $field_name:ident $([0 .. $num:ident $(* $factor:expr)?])?, $vmsd:expr, $type:ty $(, $test_fn:expr)? $(,)?) => {
$crate::bindings::VMStateField {
name: ::core::concat!(::core::stringify!($field_name), "\0")
.as_bytes()
@@ -458,6 +491,7 @@ macro_rules! vmstate_struct {
size: ::core::mem::size_of::<$type>(),
flags: $crate::bindings::VMStateFlags::VMS_STRUCT,
vmsd: $vmsd,
+ $(field_exists: $crate::vmstate_exist_fn!($struct_name, $test_fn),)?
..$crate::zeroable::Zeroable::ZERO
} $(.with_varray_flag_unchecked(
$crate::call_func_with_field!(
@@ -473,7 +507,7 @@ macro_rules! vmstate_struct {
#[doc(alias = "VMSTATE_CLOCK")]
#[macro_export]
macro_rules! vmstate_clock {
- ($struct_name:ty, $field_name:ident) => {{
+ ($struct_name:ty, $field_name:ident $([0 .. $num:ident $(* $factor:expr)?])?) => {{
$crate::bindings::VMStateField {
name: ::core::concat!(::core::stringify!($field_name), "\0")
.as_bytes()
@@ -482,7 +516,7 @@ macro_rules! vmstate_clock {
$crate::assert_field_type!(
$struct_name,
$field_name,
- $crate::qom::Owned<$crate::qdev::Clock>
+ $crate::qom::Owned<$crate::qdev::Clock> $(, num = $num)?
);
$crate::offset_of!($struct_name, $field_name)
},
@@ -493,7 +527,14 @@ macro_rules! vmstate_clock {
),
vmsd: unsafe { ::core::ptr::addr_of!($crate::bindings::vmstate_clock) },
..$crate::zeroable::Zeroable::ZERO
- }
+ } $(.with_varray_flag_unchecked(
+ $crate::call_func_with_field!(
+ $crate::vmstate::vmstate_varray_flag,
+ $struct_name,
+ $num
+ )
+ )
+ $(.with_varray_multiply($factor))?)?
}};
}
@@ -514,43 +555,13 @@ macro_rules! vmstate_fields {
}}
}
-pub extern "C" fn rust_vms_test_field_exists<T, F: for<'a> FnCall<(&'a T, u8), bool>>(
- opaque: *mut c_void,
- version_id: c_int,
-) -> bool {
- let owner: &T = unsafe { &*(opaque.cast::<T>()) };
- let version: u8 = version_id.try_into().unwrap();
- // SAFETY: the opaque was passed as a reference to `T`.
- F::call((owner, version))
-}
-
-pub type VMSFieldExistCb = unsafe extern "C" fn(
- opaque: *mut std::os::raw::c_void,
- version_id: std::os::raw::c_int,
-) -> bool;
-
#[doc(alias = "VMSTATE_VALIDATE")]
#[macro_export]
macro_rules! vmstate_validate {
($struct_name:ty, $test_name:expr, $test_fn:expr $(,)?) => {
$crate::bindings::VMStateField {
name: ::std::ffi::CStr::as_ptr($test_name),
- field_exists: {
- const fn test_cb_builder__<
- T,
- F: for<'a> $crate::callbacks::FnCall<(&'a T, u8), bool>,
- >(
- _phantom: ::core::marker::PhantomData<F>,
- ) -> $crate::vmstate::VMSFieldExistCb {
- let _: () = F::ASSERT_IS_SOME;
- $crate::vmstate::rust_vms_test_field_exists::<T, F>
- }
-
- const fn phantom__<T>(_: &T) -> ::core::marker::PhantomData<T> {
- ::core::marker::PhantomData
- }
- Some(test_cb_builder__::<$struct_name, _>(phantom__(&$test_fn)))
- },
+ field_exists: $crate::vmstate_exist_fn!($struct_name, $test_fn),
flags: $crate::bindings::VMStateFlags(
$crate::bindings::VMStateFlags::VMS_MUST_EXIST.0
| $crate::bindings::VMStateFlags::VMS_ARRAY.0,
diff --git a/rust/qemu-api/tests/vmstate_tests.rs b/rust/qemu-api/tests/vmstate_tests.rs
index 8b93492..f7a9311 100644
--- a/rust/qemu-api/tests/vmstate_tests.rs
+++ b/rust/qemu-api/tests/vmstate_tests.rs
@@ -28,7 +28,7 @@ const FOO_ARRAY_MAX: usize = 3;
// - VMSTATE_VARRAY_UINT16_UNSAFE
// - VMSTATE_VARRAY_MULTIPLY
#[repr(C)]
-#[derive(qemu_api_macros::offsets)]
+#[derive(Default, qemu_api_macros::offsets)]
struct FooA {
arr: [u8; FOO_ARRAY_MAX],
num: u16,
@@ -147,8 +147,9 @@ fn test_vmstate_varray_multiply() {
// - VMSTATE_STRUCT_VARRAY_UINT8
// - (no C version) MULTIPLY variant of VMSTATE_STRUCT_VARRAY_UINT32
// - VMSTATE_ARRAY
+// - VMSTATE_STRUCT_VARRAY_UINT8 with BqlCell wrapper & test_fn
#[repr(C)]
-#[derive(qemu_api_macros::offsets)]
+#[derive(Default, qemu_api_macros::offsets)]
struct FooB {
arr_a: [FooA; FOO_ARRAY_MAX],
num_a: u8,
@@ -158,6 +159,12 @@ struct FooB {
val: bool,
// FIXME: Use Timer array. Now we can't since it's hard to link savevm.c to test.
arr_i64: [i64; FOO_ARRAY_MAX],
+ arr_a_wrap: [FooA; FOO_ARRAY_MAX],
+ num_a_wrap: BqlCell<u32>,
+}
+
+fn validate_foob(_state: &FooB, _version_id: u8) -> bool {
+ true
}
static VMSTATE_FOOB: VMStateDescription = VMStateDescription {
@@ -170,13 +177,14 @@ static VMSTATE_FOOB: VMStateDescription = VMStateDescription {
vmstate_struct!(FooB, arr_a[0 .. num_a], &VMSTATE_FOOA, FooA).with_version_id(1),
vmstate_struct!(FooB, arr_a_mul[0 .. num_a_mul * 32], &VMSTATE_FOOA, FooA).with_version_id(2),
vmstate_of!(FooB, arr_i64),
+ vmstate_struct!(FooB, arr_a_wrap[0 .. num_a_wrap], &VMSTATE_FOOA, FooA, validate_foob),
},
..Zeroable::ZERO
};
#[test]
fn test_vmstate_bool_v() {
- let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 6) };
+ let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 7) };
// 1st VMStateField ("val") in VMSTATE_FOOB (corresponding to VMSTATE_BOOL_V)
assert_eq!(
@@ -196,7 +204,7 @@ fn test_vmstate_bool_v() {
#[test]
fn test_vmstate_uint64() {
- let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 6) };
+ let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 7) };
// 2nd VMStateField ("wrap") in VMSTATE_FOOB (corresponding to VMSTATE_U64)
assert_eq!(
@@ -216,7 +224,7 @@ fn test_vmstate_uint64() {
#[test]
fn test_vmstate_struct_varray_uint8() {
- let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 6) };
+ let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 7) };
// 3rd VMStateField ("arr_a") in VMSTATE_FOOB (corresponding to
// VMSTATE_STRUCT_VARRAY_UINT8)
@@ -240,7 +248,7 @@ fn test_vmstate_struct_varray_uint8() {
#[test]
fn test_vmstate_struct_varray_uint32_multiply() {
- let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 6) };
+ let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 7) };
// 4th VMStateField ("arr_a_mul") in VMSTATE_FOOB (corresponding to
// (no C version) MULTIPLY variant of VMSTATE_STRUCT_VARRAY_UINT32)
@@ -266,7 +274,7 @@ fn test_vmstate_struct_varray_uint32_multiply() {
#[test]
fn test_vmstate_macro_array() {
- let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 6) };
+ let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 7) };
// 5th VMStateField ("arr_i64") in VMSTATE_FOOB (corresponding to
// VMSTATE_ARRAY)
@@ -283,9 +291,26 @@ fn test_vmstate_macro_array() {
assert_eq!(foo_fields[4].flags, VMStateFlags::VMS_ARRAY);
assert!(foo_fields[4].vmsd.is_null());
assert!(foo_fields[4].field_exists.is_none());
+}
+
+#[test]
+fn test_vmstate_struct_varray_uint8_wrapper() {
+ let foo_fields: &[VMStateField] = unsafe { slice::from_raw_parts(VMSTATE_FOOB.fields, 7) };
+ let mut foo_b: FooB = Default::default();
+ let foo_b_p = std::ptr::addr_of_mut!(foo_b).cast::<c_void>();
+
+ // 6th VMStateField ("arr_a_wrap") in VMSTATE_FOOB (corresponding to
+ // VMSTATE_STRUCT_VARRAY_UINT8). Other fields are checked in
+ // test_vmstate_struct_varray_uint8.
+ assert_eq!(
+ unsafe { CStr::from_ptr(foo_fields[5].name) }.to_bytes_with_nul(),
+ b"arr_a_wrap\0"
+ );
+ assert_eq!(foo_fields[5].num_offset, 228);
+ assert!(unsafe { foo_fields[5].field_exists.unwrap()(foo_b_p, 0) });
// The last VMStateField in VMSTATE_FOOB.
- assert_eq!(foo_fields[5].flags, VMStateFlags::VMS_END);
+ assert_eq!(foo_fields[6].flags, VMStateFlags::VMS_END);
}
// =========================== Test VMSTATE_FOOC ===========================
diff --git a/target/i386/emulate/x86_decode.c b/target/i386/emulate/x86_decode.c
index 7fee219..7efa2f5 100644
--- a/target/i386/emulate/x86_decode.c
+++ b/target/i386/emulate/x86_decode.c
@@ -1408,7 +1408,7 @@ struct decode_tbl _2op_inst[] = {
};
struct decode_x87_tbl invl_inst_x87 = {0x0, 0, 0, 0, 0, false, false, NULL,
- NULL, decode_invalid, 0};
+ NULL, decode_invalid};
struct decode_x87_tbl _x87_inst[] = {
{0xd8, 0, 3, X86_DECODE_CMD_FADD, 10, false, false,
@@ -1456,8 +1456,7 @@ struct decode_x87_tbl _x87_inst[] = {
decode_x87_modrm_st0, NULL, decode_d9_4},
{0xd9, 4, 0, X86_DECODE_CMD_INVL, 4, false, false,
decode_x87_modrm_bytep, NULL, NULL},
- {0xd9, 5, 3, X86_DECODE_CMD_FLDxx, 10, false, false, NULL, NULL, NULL,
- RFLAGS_MASK_NONE},
+ {0xd9, 5, 3, X86_DECODE_CMD_FLDxx, 10, false, false, NULL, NULL, NULL},
{0xd9, 5, 0, X86_DECODE_CMD_FLDCW, 2, false, false,
decode_x87_modrm_bytep, NULL, NULL},
@@ -1478,20 +1477,17 @@ struct decode_x87_tbl _x87_inst[] = {
decode_x87_modrm_st0, NULL},
{0xda, 3, 3, X86_DECODE_CMD_FCMOV, 10, false, false, decode_x87_modrm_st0,
decode_x87_modrm_st0, NULL},
- {0xda, 4, 3, X86_DECODE_CMD_INVL, 10, false, false, NULL, NULL, NULL,
- RFLAGS_MASK_NONE},
+ {0xda, 4, 3, X86_DECODE_CMD_INVL, 10, false, false, NULL, NULL, NULL},
{0xda, 4, 0, X86_DECODE_CMD_FSUB, 4, false, false, decode_x87_modrm_st0,
decode_x87_modrm_intp, NULL},
{0xda, 5, 3, X86_DECODE_CMD_FUCOM, 10, false, true, decode_x87_modrm_st0,
decode_decode_x87_modrm_st0, NULL},
{0xda, 5, 0, X86_DECODE_CMD_FSUB, 4, true, false, decode_x87_modrm_st0,
decode_x87_modrm_intp, NULL},
- {0xda, 6, 3, X86_DECODE_CMD_INVL, 10, false, false, NULL, NULL, NULL,
- RFLAGS_MASK_NONE},
+ {0xda, 6, 3, X86_DECODE_CMD_INVL, 10, false, false, NULL, NULL, NULL},
{0xda, 6, 0, X86_DECODE_CMD_FDIV, 4, false, false, decode_x87_modrm_st0,
decode_x87_modrm_intp, NULL},
- {0xda, 7, 3, X86_DECODE_CMD_INVL, 10, false, false, NULL, NULL, NULL,
- RFLAGS_MASK_NONE},
+ {0xda, 7, 3, X86_DECODE_CMD_INVL, 10, false, false, NULL, NULL, NULL},
{0xda, 7, 0, X86_DECODE_CMD_FDIV, 4, true, false, decode_x87_modrm_st0,
decode_x87_modrm_intp, NULL},
@@ -1511,8 +1507,7 @@ struct decode_x87_tbl _x87_inst[] = {
decode_x87_modrm_intp, NULL, NULL},
{0xdb, 4, 3, X86_DECODE_CMD_INVL, 10, false, false, NULL, NULL,
decode_db_4},
- {0xdb, 4, 0, X86_DECODE_CMD_INVL, 10, false, false, NULL, NULL, NULL,
- RFLAGS_MASK_NONE},
+ {0xdb, 4, 0, X86_DECODE_CMD_INVL, 10, false, false, NULL, NULL, NULL},
{0xdb, 5, 3, X86_DECODE_CMD_FUCOMI, 10, false, false,
decode_x87_modrm_st0, decode_x87_modrm_st0, NULL},
{0xdb, 5, 0, X86_DECODE_CMD_FLD, 10, false, false,
diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c
index 23ebf25..99e37a3 100644
--- a/target/i386/hvf/hvf.c
+++ b/target/i386/hvf/hvf.c
@@ -76,6 +76,7 @@
#include "qemu/main-loop.h"
#include "qemu/accel.h"
#include "target/i386/cpu.h"
+#include "exec/target_page.h"
static Error *invtsc_mig_blocker;
diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index e3166e7..1a7fab93 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -342,7 +342,7 @@ static void gen_writeback(DisasContext *s, X86DecodedInsn *decode, int opn, TCGv
break;
case X86_OP_SEG:
/* Note that gen_movl_seg takes care of interrupt shadow and TF. */
- gen_movl_seg(s, op->n, s->T0);
+ gen_movl_seg(s, op->n, v, op->n == R_SS);
break;
case X86_OP_INT:
if (op->has_ea) {
@@ -2382,7 +2382,7 @@ static void gen_lxx_seg(DisasContext *s, X86DecodedInsn *decode, int seg)
gen_op_ld_v(s, MO_16, s->T1, s->A0);
/* load the segment here to handle exceptions properly */
- gen_movl_seg(s, seg, s->T1);
+ gen_movl_seg(s, seg, s->T1, false);
}
static void gen_LDS(DisasContext *s, X86DecodedInsn *decode)
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 8a64195..ed43c95 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -2026,27 +2026,36 @@ static void gen_op_movl_seg_real(DisasContext *s, X86Seg seg_reg, TCGv seg)
/* move SRC to seg_reg and compute if the CPU state may change. Never
call this function with seg_reg == R_CS */
-static void gen_movl_seg(DisasContext *s, X86Seg seg_reg, TCGv src)
+static void gen_movl_seg(DisasContext *s, X86Seg seg_reg, TCGv src, bool inhibit_irq)
{
if (PE(s) && !VM86(s)) {
TCGv_i32 sel = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(sel, src);
gen_helper_load_seg(tcg_env, tcg_constant_i32(seg_reg), sel);
- /* abort translation because the addseg value may change or
- because ss32 may change. For R_SS, translation must always
- stop as a special handling must be done to disable hardware
- interrupts for the next instruction */
- if (seg_reg == R_SS) {
- s->base.is_jmp = DISAS_EOB_INHIBIT_IRQ;
- } else if (CODE32(s) && seg_reg < R_FS) {
+
+ /* For move to DS/ES/SS, the addseg or ss32 flags may change. */
+ if (CODE32(s) && seg_reg < R_FS) {
s->base.is_jmp = DISAS_EOB_NEXT;
}
} else {
gen_op_movl_seg_real(s, seg_reg, src);
- if (seg_reg == R_SS) {
- s->base.is_jmp = DISAS_EOB_INHIBIT_IRQ;
- }
+ }
+
+ /*
+ * For MOV or POP to SS (but not LSS) translation must always
+ * stop as a special handling must be done to disable hardware
+ * interrupts for the next instruction.
+ *
+ * This is the last instruction, so it's okay to overwrite
+ * HF_TF_MASK; the next TB will start with the flag set.
+ *
+ * DISAS_EOB_INHIBIT_IRQ is a superset of DISAS_EOB_NEXT which
+ * might have been set above.
+ */
+ if (inhibit_irq) {
+ s->base.is_jmp = DISAS_EOB_INHIBIT_IRQ;
+ s->flags &= ~HF_TF_MASK;
}
}
@@ -2297,7 +2306,7 @@ gen_eob(DisasContext *s, int mode)
if (mode == DISAS_EOB_RECHECK_TF) {
gen_helper_rechecking_single_step(tcg_env);
tcg_gen_exit_tb(NULL, 0);
- } else if ((s->flags & HF_TF_MASK) && mode != DISAS_EOB_INHIBIT_IRQ) {
+ } else if (s->flags & HF_TF_MASK) {
gen_helper_single_step(tcg_env);
} else if (mode == DISAS_JUMP &&
/* give irqs a chance to happen */