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2018-06-29target/arm: Implement SVE floating-point trig multiply-add coefficientRichard Henderson4-0/+104
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-23-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE FP Compare with Zero GroupRichard Henderson4-0/+138
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-22-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE Floating Point Unary Operations - Unpredicated GroupRichard Henderson4-0/+80
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-21-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE FP Fast Reduction GroupRichard Henderson4-0/+161
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-20-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE Floating Point Multiply Indexed GroupRichard Henderson4-0/+131
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-19-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE floating-point arithmetic with immediateRichard Henderson4-0/+214
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-18-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE floating-point compare vectorsRichard Henderson4-0/+162
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-17-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE scatter store vector immediateRichard Henderson2-26/+70
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-16-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE first-fault gather loadsRichard Henderson3-2/+193
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-15-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE gather loadsRichard Henderson4-0/+301
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20180627043328.11531-14-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE prefetchesRichard Henderson2-0/+44
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-13-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE scatter storesRichard Henderson4-0/+216
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-12-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE store vector/predicate registerRichard Henderson2-0/+109
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-11-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE load and broadcast elementRichard Henderson4-0/+113
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-10-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE Floating Point Accumulating Reduction GroupRichard Henderson4-0/+113
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-9-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE FP Multiply-Add GroupRichard Henderson4-0/+241
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20180627043328.11531-8-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE floating-point arithmetic (predicated)Richard Henderson4-0/+229
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-7-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE integer convert to floating-pointRichard Henderson4-0/+180
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> [PMM: fixed typo] Message-id: 20180627043328.11531-6-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE load and broadcast quadwordRichard Henderson2-0/+61
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-5-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE Memory Contiguous Store GroupRichard Henderson4-0/+343
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-4-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE Contiguous Load, first-fault and no-faultRichard Henderson4-0/+272
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Tested-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20180627043328.11531-3-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29target/arm: Implement SVE Memory Contiguous Load GroupRichard Henderson4-0/+343
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29hw/arm/virt: Silence dtc /memory warningEric Auger2-24/+24
When running dtc on the guest /proc/device-tree we get the following warning: Warning (unit_address_vs_reg): Node /memory has a reg or ranges property, but no unit name". Let's fix that by adding the unit address to the node name. We also don't create the /memory node anymore in create_fdt(). We directly create it in load_dtb. /chosen still needs to be created in create_fdt as the uart needs it. In case the user provided his own dtb, we nop all memory nodes found in root and create new one(s). Signed-off-by: Eric Auger <eric.auger@redhat.com> Message-id: 1530044492-24921-4-git-send-email-eric.auger@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29hw/arm/virt: Silence dtc /intc warningsEric Auger1-24/+39
When running dtc on the guest /proc/device-tree we get the following warnings: "Warning (unit_address_vs_reg): Node <name> has a reg or ranges property, but no unit name", with name: /intc, /intc/its, /intc/v2m. Nodes should have a name in the form <name>[@<unit-address>] where unit-address is the primary address used to access the device, listed in the node's reg property. This fix seems to make dtc happy. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1530044492-24921-3-git-send-email-eric.auger@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29device_tree: Add qemu_fdt_node_unit_pathEric Auger2-0/+71
This helper allows to retrieve the paths of nodes whose name match node-name or node-name@unit-address patterns. Signed-off-by: Eric Auger <eric.auger@redhat.com> Message-id: 1530044492-24921-2-git-send-email-eric.auger@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29device_tree: Replace error_setg(&error_fatal) by error_report() + exit()Philippe Mathieu-Daudé1-10/+13
Use error_report() + exit() instead of error_setg(&error_fatal), as suggested by the "qapi/error.h" documentation: Please don't error_setg(&error_fatal, ...), use error_report() and exit(), because that's more obvious. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Message-id: 20180625165749.3910-4-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29hw/arm/sysbus-fdt: Replace error_setg(&error_fatal) by error_report() + exit()Philippe Mathieu-Daudé1-23/+30
Use error_report() + exit() instead of error_setg(&error_fatal), as suggested by the "qapi/error.h" documentation: Please don't error_setg(&error_fatal, ...), use error_report() and exit(), because that's more obvious. This fixes CID 1352173: "Passing null pointer dt_name to qemu_fdt_node_path, which dereferences it." And this also fixes: hw/arm/sysbus-fdt.c:322:9: warning: Array access (from variable 'node_path') results in a null pointer dereference if (node_path[1]) { ^~~~~~~~~~~~ Fixes: Coverity CID 1352173 (Dereference after null check) Suggested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-id: 20180625165749.3910-3-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29hw/block/fdc: Replace error_setg(&error_abort) by assert()Philippe Mathieu-Daudé1-8/+1
Use assert() instead of error_setg(&error_abort), as suggested by the "qapi/error.h" documentation: Please don't error_setg(&error_fatal, ...), use error_report() and exit(), because that's more obvious. Likewise, don't error_setg(&error_abort, ...), use assert(). Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: John Snow <jsnow@redhat.com> Message-id: 20180625165749.3910-2-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell84-692/+1934
* "info mtree" improvements (Alexey) * fake VPD block limits for SCSI passthrough (Daniel Barboza) * chardev and main loop fixes (Daniel Berrangé, Sergio, Stefan) * help fixes (Eduardo) * pc-dimm refactoring (David) * tests improvements and fixes (Emilio, Thomas) * SVM emulation fixes (Jan) * MemoryRegionCache fix (Eric) * WHPX improvements (Justin) * ESP cleanup (Mark) * -overcommit option (Michael) * qemu-pr-helper fixes (me) * "info pic" improvements for x86 (Peter) * x86 TCG emulation fixes (Richard) * KVM slot handling fix (Shannon) * Next round of deprecation (Thomas) * Windows dump format support (Viktor) # gpg: Signature made Fri 29 Jun 2018 12:03:05 BST # gpg: using RSA key BFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # 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 * remotes/bonzini/tags/for-upstream: (60 commits) tests/boot-serial: Do not delete the output file in case of errors hw/scsi: add VPD Block Limits emulation hw/scsi: centralize SG_IO calls into single function hw/scsi: cleanups before VPD BL emulation dump: add Windows live system dump dump: add fallback KDBG using in Windows dump dump: use system context in Windows dump dump: add Windows dump format to dump-guest-memory i386/cpu: make -cpu host support monitor/mwait kvm: support -overcommit cpu-pm=on|off hmp: obsolete "info ioapic" ioapic: support "info irq" ioapic: some proper indents when dump info ioapic: support "info pic" doc: another fix to "info pic" target-i386: Mark cpu_vmexit noreturn target-i386: Allow interrupt injection after STGI target-i386: Add NMI interception to SVM memory/hmp: Print owners/parents in "info mtree" WHPX: register for unrecognized MSR exits ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29tests/boot-serial: Do not delete the output file in case of errorsThomas Huth1-8/+9
Peter reported that the boot-serial tester sometimes runs into timeouts with SPARC guests. It's currently completely unclear whether this is due to too much load on the host machine (so that the guest really just ran too slow), or whether there is something wrong with the guest's firmware boot. For further debugging, we need the serial output of the guest in case of errors, so instead of unlinking the file immediately, this is now only done in case of success. In case of error, print the name of the file with the serial output via g_error() (which then also calls abort() internally to mark the test as failed). Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1526977831-31129-1-git-send-email-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-29hw/scsi: add VPD Block Limits emulationDaniel Henrique Barboza3-12/+125
The VPD Block Limits Inquiry page is optional, allowing SCSI devices to not implement it. This is the case for devices like the MegaRAID SAS 9361-8i and Microsemi PM8069. In case of SCSI passthrough, the response of this request is used by the QEMU SCSI layer to set the max_io_sectors that the guest device will support, based on the value of the max_sectors_kb that the device has set in the host at that time. Without this response, the guest kernel is free to assume any value of max_io_sectors for the SCSI device. If this value is greater than the value from the host, SCSI Sense errors will occur because the guest will send read/write requests that are larger than the underlying host device is configured to support. An example of this behavior can be seen in [1]. A workaround is to set the max_sectors_kb host value back in the guest kernel (a process that can be automated using rc.local startup scripts and the like), but this has several drawbacks: - it can be troublesome if the guest has many passthrough devices that needs this tuning; - if a change in max_sectors_kb is made in the host side, manual change in the guests will also be required; - during an OS install it is difficult, and sometimes not possible, to go to a terminal and change the max_sectors_kb prior to the installation. This means that the disk can't be used during the install process. The easiest alternative here is to roll back to scsi-hd, install the guest and then go back to SCSI passthrough when the installation is done and max_sectors_kb can be set. An easier way would be to QEMU handle the absence of the Block Limits VPD device response, setting max_io_sectors accordingly and allowing the guest to use the device without the hassle. This patch adds emulation of the Block Limits VPD response for SCSI passthrough devices of type TYPE_DISK that doesn't support it. The following changes were made: - scsi_handle_inquiry_reply will now check the available VPD pages from the Inquiry EVPD reply. In case the device does not - a new function called scsi_generic_set_vpd_bl_emulation, that is called during device realize, was created to set a new flag 'needs_vpd_bl_emulation' of the device. This function retrieves the Inquiry EVPD response of the device to check for VPD BL support. - scsi_handle_inquiry_reply will now check the available VPD pages from the Inquiry EVPD reply in case the device needs VPD BL emulation, adding the Block Limits page (0xb0) to the list. This will make the guest kernel aware of the support that we're now providing by emulation. - a new function scsi_emulate_block_limits creates the emulated Block Limits response. This function is called inside scsi_read_complete in case the device requires Block Limits VPD emulation and we detected a SCSI Sense error in the VPD Block Limits reply that was issued from the guest kernel to the device. This error is expected: we're reporting support from our side, but the device isn't aware of it. With this patch, the guest now queries the Block Limits page during the device configuration because it is being advertised in the Supported Pages response. It will either receive the Block Limits page from the hardware, if it supports it, or will receive an emulated response from QEMU. At any rate, the guest now has the information to set the max_sectors_kb parameter accordingly, sparing the user of SCSI sense errors that would happen without the emulated response and in the absence of Block Limits support from the hardware. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1566195 Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1566195 Reported-by: Dac Nguyen <dacng@us.ibm.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20180627172432.11120-4-danielhb413@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-29hw/scsi: centralize SG_IO calls into single functionDaniel Henrique Barboza3-45/+36
For the VPD Block Limits emulation with SCSI passthrough, we'll issue an Inquiry request with EVPD set to retrieve the available VPD pages of the device. This would be done in a way similar of what scsi_generic_read_device_identification does: create a SCSI command and a reply buffer, fill in the sg_io_hdr_t structure, call blk_ioctl, check if an error occurred, process the response. This same process is done in other 2 functions, get_device_type and get_stream_blocksize. They differ in the command/reply buffer and post-processing, everything else is almost a copy/paste. Instead of adding a forth copy/pasted-ish code when adding the passthrough VPD BL emulation, this patch extirpates this repetition of those 3 functions and put it into a new one called scsi_SG_IO_FROM_DEV. Any future code that wants to execute an SG_DXFER_FROM_DEV to the device can use it, avoiding filling sg_io_hdr_t again and et cetera. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20180627172432.11120-3-danielhb413@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-29hw/scsi: cleanups before VPD BL emulationDaniel Henrique Barboza3-230/+249
To add support for the emulation of Block Limits VPD page for passthrough devices, a few adjustments in the current code base is required to avoid repetition and improve clarity. In scsi-generic.c, detach the Inquiry handling from scsi_read_complete and put it into a new function called scsi_handle_inquiry_reply. This change aims to avoid cluttering of scsi_read_complete when we more logic in the Inquiry response handling is added in the next patches, centralizing the changes in the new function. In scsi-disk.c, take the build of all emulated VPD pages from scsi_disk_emulate_inquiry and make it available to other files into a non-static function called scsi_disk_emulate_vpd_page. Making it public will allow the future VPD BL emulation code for passthrough devices to use it from scsi-generic.c, avoiding copy/pasting this code solely for that purpose. It also has the advantage of providing emulation of all VPD pages in case we need to emulate other pages in other scenarios. As a bonus, scsi_disk_emulate_inquiry got tidier. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20180627172432.11120-2-danielhb413@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-29dump: add Windows live system dumpViktor Prutyanov2-5/+246
Unlike dying Windows, live system memory doesn't contain correct register contexts. But they can be populated with QEMU register values. After this patch, QEMU will be able to produce guest Windows live system dump. Signed-off-by: Viktor Prutyanov <viktor.prutyanov@virtuozzo.com> Message-Id: <20180517162342.4330-5-viktor.prutyanov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-29dump: add fallback KDBG using in Windows dumpViktor Prutyanov1-6/+22
KdDebuggerDataBlock may be encrypted in guest memory and dump will be useless in this case. But guest driver can obtain decrypted KDBG and expose its address through BugcheckParameter1 field in raw header. After this patch, QEMU will be able to use fallback KdDebuggerDataBlock. Signed-off-by: Viktor Prutyanov <viktor.prutyanov@virtuozzo.com> Message-Id: <20180517162342.4330-4-viktor.prutyanov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-29dump: use system context in Windows dumpViktor Prutyanov1-9/+17
We use CPU #0 to access guest virtual memory, but it can execute user thread at that moment. So, switch CR3 to PageDirectoryBase from header and restore original value at the end. Signed-off-by: Viktor Prutyanov <viktor.prutyanov@virtuozzo.com> Message-Id: <20180517162342.4330-3-viktor.prutyanov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-29dump: add Windows dump format to dump-guest-memoryViktor Prutyanov7-9/+339
This patch adds Windows crashdumping feature. Now QEMU can produce ELF-dump containing Windows crashdump header, which can help to convert to a valid WinDbg-understandable crashdump file, or immediately create such file. The crashdump will be obtained by joining physical memory dump and 8K header exposed through vmcoreinfo/fw_cfg device by guest driver at BSOD time. Option '-w' was added to dump-guest-memory command. At the moment, only x64 configuration is supported. Suitable driver can be found at https://github.com/virtio-win/kvm-guest-drivers-windows/tree/master/fwcfg64 Signed-off-by: Viktor Prutyanov <viktor.prutyanov@virtuozzo.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20180517162342.4330-2-viktor.prutyanov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-29i386/cpu: make -cpu host support monitor/mwaitMichael S. Tsirkin4-10/+43
When guest CPU PM is enabled, and with -cpu host, expose the host CPU MWAIT leaf in the CPUID so guest can make good PM decisions. Note: the result is 100% CPU utilization reported by host as host no longer knows that the CPU is halted. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20180622192148.178309-3-mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28kvm: support -overcommit cpu-pm=on|offMichael S. Tsirkin4-1/+79
With this flag, kvm allows guest to control host CPU power state. This increases latency for other processes using same host CPU in an unpredictable way, but if decreases idle entry/exit times for the running VCPU, so to use it QEMU needs a hint about whether host CPU is overcommitted, hence the flag name. Follow-up patches will expose this capability to guest (using mwait leaf). Based on a patch by Wanpeng Li <kernellwp@gmail.com> . Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20180622192148.178309-2-mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28hmp: obsolete "info ioapic"Peter Xu4-29/+2
Let's start to use "info pic" just like other platforms. For now we keep the command for a while so that old users can know what is the new command to use. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20171229073104.3810-6-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28ioapic: support "info irq"Peter Xu4-0/+29
This include both userspace and in-kernel ioapic. Note that the numbers can be inaccurate for kvm-ioapic. One reason is the same with kvm-i8259, that when irqfd is used, irqs can be delivered all inside kernel without our notice. Meanwhile, kvm-ioapic is specially treated when irq numbers <ISA_NUM_IRQS, those irqs will be delivered in kernel too via kvm-i8259 (please refer to kvm_pc_gsi_handler). Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20171229073104.3810-5-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28ioapic: some proper indents when dump infoPeter Xu1-4/+4
So that now it looks better when with other irqchips. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20171229073104.3810-4-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28ioapic: support "info pic"Peter Xu1-0/+16
People start to use "info pic" for all kinds of irqchip dumps. Let x86 ioapic join the family. It dumps the same thing as "info ioapic". Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20171229073104.3810-3-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28doc: another fix to "info pic"Peter Xu1-1/+1
Something that commit 254316fa1f ("intc: make HMP 'info irq' and 'info pic' commands available on all targets", 2016-10-04) forgot to touch up. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20171229073104.3810-2-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28target-i386: Mark cpu_vmexit noreturnJan Kiszka2-2/+3
It calls cpu_loop_exit in system emulation mode (and should never be called in user emulation mode). Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Message-Id: <6f4d44ffde55d074cbceb48309c1678600abad2f.1522769774.git.jan.kiszka@web.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28target-i386: Allow interrupt injection after STGIJan Kiszka1-1/+2
We need to terminate the translation block after STGI so that pending interrupts can be injected. This fixes pending NMI injection for Jailhouse which uses "stgi; clgi" to open a brief injection window. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Message-Id: <37939b244dda0e9cccf96ce50f2b15df1e48315d.1522769774.git.jan.kiszka@web.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28target-i386: Add NMI interception to SVMJan Kiszka1-0/+1
Check for SVM interception prior to injecting an NMI. Tested via the Jailhouse hypervisor. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Message-Id: <c65877e9a011ee4962931287e59f502c482b8d0b.1522769774.git.jan.kiszka@web.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28memory/hmp: Print owners/parents in "info mtree"Alexey Kardashevskiy4-15/+70
This adds owners/parents (which are the same, just occasionally owner==NULL) printing for memory regions; a new '-o' flag enabled new output. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Message-Id: <20180604032511.6980-1-aik@ozlabs.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28WHPX: register for unrecognized MSR exitsJustin Terry (VM)1-3/+38
Some variations of Linux kernels end up accessing MSR's that the Windows Hypervisor doesn't implement which causes a GP to be returned to the guest. This fix registers QEMU for unimplemented MSR access and globally returns 0 on reads and ignores writes. This behavior is allows the Linux kernel to probe the MSR with a write/read/check sequence it does often without failing the access. Signed-off-by: Justin Terry (VM) <juterry@microsoft.com> Message-Id: <20180605221500.21674-2-juterry@microsoft.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28WHPX workaround bug in OSVW handlingJustin Terry (VM)1-1/+12
Adds a workaround to an incorrect value setting CPUID Fn8000_0001_ECX[bit 9 OSVW] = 1. This can cause a guest linux kernel to panic when an issue to rdmsr C001_0140h returns 0. Disabling this feature correctly allows the guest to boot without accessing the osv workarounds. Signed-off-by: Justin Terry (VM) <juterry@microsoft.com> Message-Id: <20180605221500.21674-1-juterry@microsoft.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
generated by cgit v1.1 at 2025-01-04 00:29:25 +0000