From 73e87a037ccd6d9fd02c3fd0a082f014412c7555 Mon Sep 17 00:00:00 2001
Message-Id: <73e87a037ccd6d9fd02c3fd0a082f014412c7555@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Mon, 19 Jun 2017 13:18:52 +0200
Subject: [PATCH] cpu_x86: Properly disable unknown CPU features
CPU features unknown to a hypervisor will not be present in dataDisabled
even though the features won't naturally be enabled because.
Thus any features we asked for which are not in dataEnabled should be
considered disabled.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
(cherry picked from commit 83e081b8ab32dd990b4e4ccc7bf8a1a416fc51c2)
https://bugzilla.redhat.com/show_bug.cgi?id=1470582
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
---
src/cpu/cpu_x86.c | 9 +-
tests/cputest.c | 1 +
.../x86_64-cpuid-Core-i7-5600U-arat-disabled.xml | 5 +
.../x86_64-cpuid-Core-i7-5600U-arat-enabled.xml | 8 +
.../x86_64-cpuid-Core-i7-5600U-arat-guest.xml | 29 +++
.../x86_64-cpuid-Core-i7-5600U-arat-host.xml | 30 +++
.../x86_64-cpuid-Core-i7-5600U-arat-json.xml | 14 ++
.../x86_64-cpuid-Core-i7-5600U-arat.json | 202 +++++++++++++++++++++
.../x86_64-cpuid-Core-i7-5600U-arat.xml | 41 +++++
9 files changed, 335 insertions(+), 4 deletions(-)
create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-disabled.xml
create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-enabled.xml
create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-guest.xml
create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-host.xml
create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-json.xml
create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat.json
create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat.xml
diff --git a/src/cpu/cpu_x86.c b/src/cpu/cpu_x86.c
index 53359ff9b6..2864454211 100644
--- a/src/cpu/cpu_x86.c
+++ b/src/cpu/cpu_x86.c
@@ -2664,12 +2664,11 @@ virCPUx86UpdateLive(virCPUDefPtr cpu,
x86DataCopy(&disabled, &dataDisabled->data.x86) < 0)
goto cleanup;
- x86DataSubtract(&enabled, &model->data);
-
for (i = 0; i < map->nfeatures; i++) {
virCPUx86FeaturePtr feature = map->features[i];
- if (x86DataIsSubset(&enabled, &feature->data)) {
+ if (x86DataIsSubset(&enabled, &feature->data) &&
+ !x86DataIsSubset(&model->data, &feature->data)) {
VIR_DEBUG("Feature '%s' enabled by the hypervisor", feature->name);
if (cpu->check == VIR_CPU_CHECK_FULL)
virBufferAsprintf(&bufAdded, "%s,", feature->name);
@@ -2678,7 +2677,9 @@ virCPUx86UpdateLive(virCPUDefPtr cpu,
goto cleanup;
}
- if (x86DataIsSubset(&disabled, &feature->data)) {
+ if (x86DataIsSubset(&disabled, &feature->data) ||
+ (x86DataIsSubset(&model->data, &feature->data) &&
+ !x86DataIsSubset(&enabled, &feature->data))) {
VIR_DEBUG("Feature '%s' disabled by the hypervisor", feature->name);
if (cpu->check == VIR_CPU_CHECK_FULL)
virBufferAsprintf(&bufRemoved, "%s,", feature->name);
diff --git a/tests/cputest.c b/tests/cputest.c
index 97b34de9ed..5190a83467 100644
--- a/tests/cputest.c
+++ b/tests/cputest.c
@@ -991,6 +991,7 @@ mymain(void)
DO_TEST_CPUID(VIR_ARCH_X86_64, "Core-i7-4600U", true);
DO_TEST_CPUID(VIR_ARCH_X86_64, "Core-i7-4510U", true);
DO_TEST_CPUID(VIR_ARCH_X86_64, "Core-i7-5600U", true);
+ DO_TEST_CPUID(VIR_ARCH_X86_64, "Core-i7-5600U-arat", true);
DO_TEST_CPUID(VIR_ARCH_X86_64, "Core2-E6850", true);
DO_TEST_CPUID(VIR_ARCH_X86_64, "Core2-Q9500", false);
DO_TEST_CPUID(VIR_ARCH_X86_64, "FX-8150", false);
diff --git a/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-disabled.xml b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-disabled.xml
new file mode 100644
index 0000000000..4a0477f788
--- /dev/null
+++ b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-disabled.xml
@@ -0,0 +1,5 @@
+<!-- Features disabled by QEMU -->
+<cpudata arch='x86'>
+ <cpuid eax_in='0x00000001' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x0800c1dc' edx='0xb0600000'/>
+ <cpuid eax_in='0x80000007' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000100'/>
+</cpudata>
diff --git a/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-enabled.xml b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-enabled.xml
new file mode 100644
index 0000000000..5cffacef59
--- /dev/null
+++ b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-enabled.xml
@@ -0,0 +1,8 @@
+<!-- Features enabled by QEMU -->
+<cpudata arch='x86'>
+ <cpuid eax_in='0x00000001' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0xf7fa3223' edx='0x0f8bfbff'/>
+ <cpuid eax_in='0x00000007' ecx_in='0x00' eax='0x00000000' ebx='0x001c0fbb' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x0000000d' ecx_in='0x01' eax='0x00000001' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x40000001' ecx_in='0x00' eax='0x010000fa' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x80000001' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000121' edx='0x2c100800'/>
+</cpudata>
diff --git a/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-guest.xml b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-guest.xml
new file mode 100644
index 0000000000..877895cf15
--- /dev/null
+++ b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-guest.xml
@@ -0,0 +1,29 @@
+<cpu mode='custom' match='exact'>
+ <model fallback='forbid'>Broadwell</model>
+ <vendor>Intel</vendor>
+ <feature policy='require' name='vme'/>
+ <feature policy='require' name='ds'/>
+ <feature policy='require' name='acpi'/>
+ <feature policy='require' name='ss'/>
+ <feature policy='require' name='ht'/>
+ <feature policy='require' name='tm'/>
+ <feature policy='require' name='pbe'/>
+ <feature policy='require' name='dtes64'/>
+ <feature policy='require' name='monitor'/>
+ <feature policy='require' name='ds_cpl'/>
+ <feature policy='require' name='vmx'/>
+ <feature policy='require' name='smx'/>
+ <feature policy='require' name='est'/>
+ <feature policy='require' name='tm2'/>
+ <feature policy='require' name='xtpr'/>
+ <feature policy='require' name='pdcm'/>
+ <feature policy='require' name='osxsave'/>
+ <feature policy='require' name='f16c'/>
+ <feature policy='require' name='rdrand'/>
+ <feature policy='require' name='arat'/>
+ <feature policy='require' name='tsc_adjust'/>
+ <feature policy='require' name='xsaveopt'/>
+ <feature policy='require' name='pdpe1gb'/>
+ <feature policy='require' name='abm'/>
+ <feature policy='require' name='invtsc'/>
+</cpu>
diff --git a/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-host.xml b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-host.xml
new file mode 100644
index 0000000000..9b24941e0e
--- /dev/null
+++ b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-host.xml
@@ -0,0 +1,30 @@
+<cpu>
+ <arch>x86_64</arch>
+ <model>Broadwell</model>
+ <vendor>Intel</vendor>
+ <feature name='vme'/>
+ <feature name='ds'/>
+ <feature name='acpi'/>
+ <feature name='ss'/>
+ <feature name='ht'/>
+ <feature name='tm'/>
+ <feature name='pbe'/>
+ <feature name='dtes64'/>
+ <feature name='monitor'/>
+ <feature name='ds_cpl'/>
+ <feature name='vmx'/>
+ <feature name='smx'/>
+ <feature name='est'/>
+ <feature name='tm2'/>
+ <feature name='xtpr'/>
+ <feature name='pdcm'/>
+ <feature name='osxsave'/>
+ <feature name='f16c'/>
+ <feature name='rdrand'/>
+ <feature name='arat'/>
+ <feature name='tsc_adjust'/>
+ <feature name='xsaveopt'/>
+ <feature name='pdpe1gb'/>
+ <feature name='abm'/>
+ <feature name='invtsc'/>
+</cpu>
diff --git a/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-json.xml b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-json.xml
new file mode 100644
index 0000000000..4f253fc08a
--- /dev/null
+++ b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat-json.xml
@@ -0,0 +1,14 @@
+<cpu mode='custom' match='exact'>
+ <model fallback='forbid'>Broadwell</model>
+ <vendor>Intel</vendor>
+ <feature policy='require' name='vme'/>
+ <feature policy='require' name='ss'/>
+ <feature policy='require' name='vmx'/>
+ <feature policy='require' name='f16c'/>
+ <feature policy='require' name='rdrand'/>
+ <feature policy='require' name='hypervisor'/>
+ <feature policy='require' name='tsc_adjust'/>
+ <feature policy='require' name='xsaveopt'/>
+ <feature policy='require' name='pdpe1gb'/>
+ <feature policy='require' name='abm'/>
+</cpu>
diff --git a/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat.json b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat.json
new file mode 100644
index 0000000000..f2aa7f3185
--- /dev/null
+++ b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat.json
@@ -0,0 +1,202 @@
+{
+ "return": {
+ "model": {
+ "name": "base",
+ "props": {
+ "pfthreshold": false,
+ "pku": false,
+ "rtm": true,
+ "tsc_adjust": true,
+ "tsc-deadline": true,
+ "xstore-en": false,
+ "tsc-scale": false,
+ "sse": true,
+ "smap": true,
+ "stepping": 4,
+ "tce": false,
+ "kvm_steal_time": true,
+ "smep": true,
+ "rdpid": false,
+ "xcrypt": false,
+ "sse4_2": true,
+ "monitor": false,
+ "sse4_1": true,
+ "kvm-mmu": false,
+ "flushbyasid": false,
+ "kvm-steal-time": true,
+ "lm": true,
+ "tsc": true,
+ "adx": true,
+ "fxsr": true,
+ "sha-ni": false,
+ "tm": false,
+ "pclmuldq": true,
+ "xgetbv1": false,
+ "xstore": false,
+ "vmcb_clean": false,
+ "vme": true,
+ "vendor": "GenuineIntel",
+ "ffxsr": false,
+ "de": true,
+ "avx512f": false,
+ "pse": true,
+ "ds-cpl": false,
+ "tbm": false,
+ "ia64": false,
+ "phe-en": false,
+ "f16c": true,
+ "ds": false,
+ "mpx": false,
+ "tsc-adjust": true,
+ "aes": true,
+ "avx2": true,
+ "pbe": false,
+ "cx16": true,
+ "ds_cpl": false,
+ "movbe": true,
+ "perfctr-nb": false,
+ "nrip_save": false,
+ "kvm_mmu": false,
+ "ospke": false,
+ "avx512ifma": false,
+ "vmx": true,
+ "sep": true,
+ "xsaveopt": true,
+ "sse4a": false,
+ "avx512dq": false,
+ "i64": true,
+ "avx512-4vnniw": false,
+ "xsave": true,
+ "erms": true,
+ "hle": true,
+ "nodeid_msr": false,
+ "est": false,
+ "svm_lock": false,
+ "xop": false,
+ "model-id": "Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz",
+ "abm": true,
+ "avx512er": false,
+ "sse4.1": true,
+ "sse4.2": true,
+ "pause-filter": false,
+ "lahf-lm": true,
+ "kvm-nopiodelay": true,
+ "cmp_legacy": false,
+ "acpi": false,
+ "fma4": false,
+ "popcnt": true,
+ "mmx": true,
+ "osxsave": false,
+ "pcommit": false,
+ "avx512pf": false,
+ "clwb": false,
+ "dca": false,
+ "pdcm": false,
+ "xcrypt-en": false,
+ "3dnow": false,
+ "invtsc": false,
+ "tm2": false,
+ "hypervisor": true,
+ "kvmclock-stable-bit": true,
+ "fxsr-opt": false,
+ "pcid": true,
+ "sse4-1": true,
+ "sse4-2": true,
+ "avx512-vpopcntdq": false,
+ "avx512-4fmaps": false,
+ "pause_filter": false,
+ "svm-lock": false,
+ "rdrand": true,
+ "nrip-save": false,
+ "avx512vl": false,
+ "x2apic": true,
+ "kvmclock": true,
+ "pge": true,
+ "family": 6,
+ "dtes64": false,
+ "xd": true,
+ "kvm_pv_eoi": true,
+ "ace2": false,
+ "kvm_pv_unhalt": true,
+ "xtpr": false,
+ "perfctr_nb": false,
+ "avx512bw": false,
+ "nx": true,
+ "lwp": false,
+ "msr": true,
+ "ace2-en": false,
+ "decodeassists": false,
+ "perfctr-core": false,
+ "pn": false,
+ "fma": true,
+ "nodeid-msr": false,
+ "kvm_asyncpf": true,
+ "clflush": true,
+ "cx8": true,
+ "mce": true,
+ "avx512cd": false,
+ "cr8legacy": false,
+ "mca": true,
+ "pni": true,
+ "rdseed": true,
+ "apic": true,
+ "fsgsbase": true,
+ "cmp-legacy": false,
+ "kvm-pv-unhalt": true,
+ "rdtscp": true,
+ "mmxext": false,
+ "cid": false,
+ "ssse3": true,
+ "extapic": false,
+ "pse36": true,
+ "mtrr": true,
+ "ibs": false,
+ "la57": false,
+ "avx": true,
+ "syscall": true,
+ "umip": false,
+ "invpcid": true,
+ "avx512vbmi": false,
+ "kvm-asyncpf": true,
+ "vmcb-clean": false,
+ "pmm": false,
+ "cmov": true,
+ "perfctr_core": false,
+ "misalignsse": false,
+ "clflushopt": false,
+ "pat": true,
+ "lbrv": false,
+ "3dnowprefetch": true,
+ "fpu": true,
+ "pae": true,
+ "wdt": false,
+ "tsc_scale": false,
+ "skinit": false,
+ "fxsr_opt": false,
+ "kvm_nopiodelay": true,
+ "pmm-en": false,
+ "phe": false,
+ "3dnowext": false,
+ "osvw": false,
+ "ht": false,
+ "pdpe1gb": true,
+ "kvm-pv-eoi": true,
+ "npt": false,
+ "xsavec": false,
+ "lahf_lm": true,
+ "pclmulqdq": true,
+ "svm": false,
+ "sse3": true,
+ "sse2": true,
+ "ss": true,
+ "topoext": false,
+ "smx": false,
+ "bmi1": true,
+ "bmi2": true,
+ "xsaves": false,
+ "model": 61
+ }
+ }
+ },
+ "id": "model-expansion"
+}
diff --git a/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat.xml b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat.xml
new file mode 100644
index 0000000000..ecb4a6e15c
--- /dev/null
+++ b/tests/cputestdata/x86_64-cpuid-Core-i7-5600U-arat.xml
@@ -0,0 +1,41 @@
+<!-- Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz -->
+<cpudata arch='x86'>
+ <cpuid eax_in='0x00000000' ecx_in='0x00' eax='0x00000014' ebx='0x756e6547' ecx='0x6c65746e' edx='0x49656e69'/>
+ <cpuid eax_in='0x00000001' ecx_in='0x00' eax='0x000306d4' ebx='0x00100800' ecx='0x7ffafbff' edx='0xbfebfbff'/>
+ <cpuid eax_in='0x00000002' ecx_in='0x00' eax='0x76036301' ebx='0x00f0b5ff' ecx='0x00000000' edx='0x00c30000'/>
+ <cpuid eax_in='0x00000003' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x00000004' ecx_in='0x00' eax='0x1c004121' ebx='0x01c0003f' ecx='0x0000003f' edx='0x00000000'/>
+ <cpuid eax_in='0x00000004' ecx_in='0x01' eax='0x1c004122' ebx='0x01c0003f' ecx='0x0000003f' edx='0x00000000'/>
+ <cpuid eax_in='0x00000004' ecx_in='0x02' eax='0x1c004143' ebx='0x01c0003f' ecx='0x000001ff' edx='0x00000000'/>
+ <cpuid eax_in='0x00000004' ecx_in='0x03' eax='0x1c03c163' ebx='0x03c0003f' ecx='0x00000fff' edx='0x00000006'/>
+ <cpuid eax_in='0x00000005' ecx_in='0x00' eax='0x00000040' ebx='0x00000040' ecx='0x00000003' edx='0x11142120'/>
+ <cpuid eax_in='0x00000006' ecx_in='0x00' eax='0x00000077' ebx='0x00000002' ecx='0x00000009' edx='0x00000000'/>
+ <cpuid eax_in='0x00000007' ecx_in='0x00' eax='0x00000000' ebx='0x021c2fbb' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x00000008' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x00000009' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x0000000a' ecx_in='0x00' eax='0x07300403' ebx='0x00000000' ecx='0x00000000' edx='0x00000603'/>
+ <cpuid eax_in='0x0000000b' ecx_in='0x00' eax='0x00000001' ebx='0x00000002' ecx='0x00000100' edx='0x00000000'/>
+ <cpuid eax_in='0x0000000b' ecx_in='0x01' eax='0x00000004' ebx='0x00000004' ecx='0x00000201' edx='0x00000000'/>
+ <cpuid eax_in='0x0000000c' ecx_in='0x00' eax='0x00000000' ebx='0x00000001' ecx='0x00000001' edx='0x00000000'/>
+ <cpuid eax_in='0x0000000d' ecx_in='0x00' eax='0x00000007' ebx='0x00000340' ecx='0x00000340' edx='0x00000000'/>
+ <cpuid eax_in='0x0000000d' ecx_in='0x01' eax='0x00000001' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x0000000d' ecx_in='0x02' eax='0x00000100' ebx='0x00000240' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x0000000e' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x0000000f' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x00000010' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x00000011' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x00000012' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x00000013' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x00000014' ecx_in='0x00' eax='0x00000000' ebx='0x00000001' ecx='0x00000001' edx='0x00000000'/>
+ <cpuid eax_in='0x80000000' ecx_in='0x00' eax='0x80000008' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x80000001' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000121' edx='0x2c100800'/>
+ <cpuid eax_in='0x80000002' ecx_in='0x00' eax='0x65746e49' ebx='0x2952286c' ecx='0x726f4320' edx='0x4d542865'/>
+ <cpuid eax_in='0x80000003' ecx_in='0x00' eax='0x37692029' ebx='0x3036352d' ecx='0x43205530' edx='0x40205550'/>
+ <cpuid eax_in='0x80000004' ecx_in='0x00' eax='0x362e3220' ebx='0x7a484730' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x80000005' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x80000006' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x01006040' edx='0x00000000'/>
+ <cpuid eax_in='0x80000007' ecx_in='0x00' eax='0x00000000' ebx='0x00000000' ecx='0x00000000' edx='0x00000100'/>
+ <cpuid eax_in='0x80000008' ecx_in='0x00' eax='0x00003027' ebx='0x00000000' ecx='0x00000000' edx='0x00000000'/>
+ <cpuid eax_in='0x80860000' ecx_in='0x00' eax='0x00000000' ebx='0x00000001' ecx='0x00000001' edx='0x00000000'/>
+ <cpuid eax_in='0xc0000000' ecx_in='0x00' eax='0x00000000' ebx='0x00000001' ecx='0x00000001' edx='0x00000000'/>
+</cpudata>
--
2.13.2