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author | Anthony Liguori <aliguori@us.ibm.com> | 2013-04-19 08:37:58 -0500 |
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committer | Anthony Liguori <aliguori@us.ibm.com> | 2013-04-19 08:37:58 -0500 |
commit | b6c99f8a6d66c5fa01a60483d9b012eb2b0932f2 (patch) | |
tree | a55d2778b242575eebf69d24198468db8321189e | |
parent | 09dada400328d75daf79e3eca1e48e024fec148d (diff) | |
parent | 007e986ff2dd140348e76feb21cde1a51ce6c5b4 (diff) | |
download | qemu-b6c99f8a6d66c5fa01a60483d9b012eb2b0932f2.zip qemu-b6c99f8a6d66c5fa01a60483d9b012eb2b0932f2.tar.gz qemu-b6c99f8a6d66c5fa01a60483d9b012eb2b0932f2.tar.bz2 |
Merge remote-tracking branch 'qemu-kvm/uq/master' into staging
# By Jan Kiszka (4) and Marcelo Tosatti (1)
# Via Marcelo Tosatti
* qemu-kvm/uq/master:
vmxcap: Update according to SDM of January 2013
target-i386: kvm: save/restore steal time MSR
vmxcap: Report APIC register emulation and RDTSCP control
vmxcap: Augment reported information
vmxcap: Open MSR file in unbuffered mode
Message-id: cover.1366253306.git.mtosatti@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-rwxr-xr-x | scripts/kvm/vmxcap | 26 | ||||
-rw-r--r-- | target-i386/cpu.h | 1 | ||||
-rw-r--r-- | target-i386/kvm.c | 13 | ||||
-rw-r--r-- | target-i386/machine.c | 21 |
4 files changed, 58 insertions, 3 deletions
diff --git a/scripts/kvm/vmxcap b/scripts/kvm/vmxcap index 0b23f77..c90eda4 100755 --- a/scripts/kvm/vmxcap +++ b/scripts/kvm/vmxcap @@ -27,9 +27,9 @@ MSR_IA32_VMX_VMFUNC = 0x491 class msr(object): def __init__(self): try: - self.f = file('/dev/cpu/0/msr') + self.f = open('/dev/cpu/0/msr', 'r', 0) except: - self.f = file('/dev/msr0') + self.f = open('/dev/msr0', 'r', 0) def read(self, index, default = None): import struct self.f.seek(index) @@ -96,6 +96,19 @@ class Misc(object): print ' %-40s %s' % (self.bits[bits], fmt(v)) controls = [ + Misc( + name = 'Basic VMX Information', + bits = { + (0, 31): 'Revision', + (32,44): 'VMCS size', + 48: 'VMCS restricted to 32 bit addresses', + 49: 'Dual-monitor support', + (50, 53): 'VMCS memory type', + 54: 'INS/OUTS instruction information', + 55: 'IA32_VMX_TRUE_*_CTLS support', + }, + msr = MSR_IA32_VMX_BASIC, + ), Control( name = 'pin-based controls', bits = { @@ -103,6 +116,7 @@ controls = [ 3: 'NMI exiting', 5: 'Virtual NMIs', 6: 'Activate VMX-preemption timer', + 7: 'Process posted interrupts', }, cap_msr = MSR_IA32_VMX_PINBASED_CTLS, true_cap_msr = MSR_IA32_VMX_TRUE_PINBASED_CTLS, @@ -143,15 +157,19 @@ controls = [ 0: 'Virtualize APIC accesses', 1: 'Enable EPT', 2: 'Descriptor-table exiting', + 3: 'Enable RDTSCP', 4: 'Virtualize x2APIC mode', 5: 'Enable VPID', 6: 'WBINVD exiting', 7: 'Unrestricted guest', + 8: 'APIC register emulation', 9: 'Virtual interrupt delivery', 10: 'PAUSE-loop exiting', 11: 'RDRAND exiting', 12: 'Enable INVPCID', 13: 'Enable VM functions', + 14: 'VMCS shadowing', + 18: 'EPT-violation #VE' }, cap_msr = MSR_IA32_VMX_PROCBASED_CTLS2, ), @@ -196,10 +214,12 @@ controls = [ 6: 'HLT activity state', 7: 'Shutdown activity state', 8: 'Wait-for-SIPI activity state', + 15: 'IA32_SMBASE support', (16,24): 'Number of CR3-target values', (25,27): 'MSR-load/store count recommenation', 28: 'IA32_SMM_MONITOR_CTL[2] can be set to 1', - (32,62): 'MSEG revision identifier', + 29: 'VMWRITE to VM-exit information fields', + (32,63): 'MSEG revision identifier', }, msr = MSR_IA32_VMX_MISC_CTLS, ), diff --git a/target-i386/cpu.h b/target-i386/cpu.h index cf1b05c..a1614e8 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -803,6 +803,7 @@ typedef struct CPUX86State { #endif uint64_t system_time_msr; uint64_t wall_clock_msr; + uint64_t steal_time_msr; uint64_t async_pf_en_msr; uint64_t pv_eoi_en_msr; diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 397afeb..0e7cc81 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -68,6 +68,7 @@ static bool has_msr_tsc_deadline; static bool has_msr_async_pf_en; static bool has_msr_pv_eoi_en; static bool has_msr_misc_enable; +static bool has_msr_kvm_steal_time; static int lm_capable_kernel; bool kvm_allows_irq0_override(void) @@ -507,6 +508,8 @@ int kvm_arch_init_vcpu(CPUState *cs) has_msr_pv_eoi_en = c->eax & (1 << KVM_FEATURE_PV_EOI); + has_msr_kvm_steal_time = c->eax & (1 << KVM_FEATURE_STEAL_TIME); + cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); for (i = 0; i <= limit; i++) { @@ -1107,6 +1110,10 @@ static int kvm_put_msrs(X86CPU *cpu, int level) kvm_msr_entry_set(&msrs[n++], MSR_KVM_PV_EOI_EN, env->pv_eoi_en_msr); } + if (has_msr_kvm_steal_time) { + kvm_msr_entry_set(&msrs[n++], MSR_KVM_STEAL_TIME, + env->steal_time_msr); + } if (hyperv_hypercall_available()) { kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID, 0); kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL, 0); @@ -1360,6 +1367,9 @@ static int kvm_get_msrs(X86CPU *cpu) if (has_msr_pv_eoi_en) { msrs[n++].index = MSR_KVM_PV_EOI_EN; } + if (has_msr_kvm_steal_time) { + msrs[n++].index = MSR_KVM_STEAL_TIME; + } if (env->mcg_cap) { msrs[n++].index = MSR_MCG_STATUS; @@ -1445,6 +1455,9 @@ static int kvm_get_msrs(X86CPU *cpu) case MSR_KVM_PV_EOI_EN: env->pv_eoi_en_msr = msrs[i].data; break; + case MSR_KVM_STEAL_TIME: + env->steal_time_msr = msrs[i].data; + break; } } diff --git a/target-i386/machine.c b/target-i386/machine.c index ee85e57..3659db9 100644 --- a/target-i386/machine.c +++ b/target-i386/machine.c @@ -292,6 +292,24 @@ static bool pv_eoi_msr_needed(void *opaque) return cpu->env.pv_eoi_en_msr != 0; } +static bool steal_time_msr_needed(void *opaque) +{ + CPUX86State *cpu = opaque; + + return cpu->steal_time_msr != 0; +} + +static const VMStateDescription vmstate_steal_time_msr = { + .name = "cpu/steal_time_msr", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField []) { + VMSTATE_UINT64(steal_time_msr, CPUX86State), + VMSTATE_END_OF_LIST() + } +}; + static const VMStateDescription vmstate_async_pf_msr = { .name = "cpu/async_pf_msr", .version_id = 1, @@ -503,6 +521,9 @@ const VMStateDescription vmstate_x86_cpu = { .vmsd = &vmstate_pv_eoi_msr, .needed = pv_eoi_msr_needed, } , { + .vmsd = &vmstate_steal_time_msr, + .needed = steal_time_msr_needed, + } , { .vmsd = &vmstate_fpop_ip_dp, .needed = fpop_ip_dp_needed, }, { |