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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v6 01/21] xen/x86: Annotate VM applicability in featureset
Use attributes to specify whether a feature is applicable to be exposed to:
1) All guests
2) HVM guests
3) HVM HAP guests
and, via absence of an attribute, to no guests.
There is no current need for other categories (e.g. PV-only features), and
such categories should not be introduced if possible. These categories follow
from the fact that, with increased hardware support, a guest gets more
features to use.
These settings are derived from the existing code in {pv,hvm}_cpuid(), and
xc_cpuid_x86.c. One notable exception is EXTAPIC which was previously
erroneously exposed to guests. PV guests don't get to use the APIC and the
HVM APIC emulation doesn't support extended space.
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Reviewed-by: Jan Beulich <JBeulich@xxxxxxxx>
---
v2:
* Annotate features using a magic comment and autogeneration.
v3:
* Rebase over the new namespaceing changes.
* Expand commit message.
* Correct PSE36 to being a HAP-only feature.
v4:
* Re-break PSE36.
* Hide LWP from PV guests.
v5:
* Explicitly identify that attributes are not part of the public API.
---
xen/include/public/arch-x86/cpufeatureset.h | 190 ++++++++++++++--------------
xen/tools/gen-cpuid.py | 32 ++++-
2 files changed, 128 insertions(+), 94 deletions(-)
diff --git a/xen/include/public/arch-x86/cpufeatureset.h
b/xen/include/public/arch-x86/cpufeatureset.h
index 8308972..edd9975 100644
--- a/xen/include/public/arch-x86/cpufeatureset.h
+++ b/xen/include/public/arch-x86/cpufeatureset.h
@@ -75,141 +75,147 @@ enum {
* Attribute syntax:
*
* Attributes for a particular feature are provided as characters before the
- * first space in the comment immediately following the feature value.
+ * first space in the comment immediately following the feature value. Note -
+ * none of these attributes form part of the Xen public ABI.
*
* Special: '!'
* This bit has special properties and is not a straight indication of a
* piece of new functionality. Xen will handle these differently,
* and may override toolstack settings completely.
+ *
+ * Applicability to guests: 'A', 'S' or 'H'
+ * 'A' = All guests.
+ * 'S' = All HVM guests (not PV guests).
+ * 'H' = HVM HAP guests (not PV or HVM Shadow guests).
*/
/* Intel-defined CPU features, CPUID level 0x00000001.edx, word 0 */
-XEN_CPUFEATURE(FPU, 0*32+ 0) /* Onboard FPU */
-XEN_CPUFEATURE(VME, 0*32+ 1) /* Virtual Mode Extensions */
-XEN_CPUFEATURE(DE, 0*32+ 2) /* Debugging Extensions */
-XEN_CPUFEATURE(PSE, 0*32+ 3) /* Page Size Extensions */
-XEN_CPUFEATURE(TSC, 0*32+ 4) /* Time Stamp Counter */
-XEN_CPUFEATURE(MSR, 0*32+ 5) /* Model-Specific Registers, RDMSR,
WRMSR */
-XEN_CPUFEATURE(PAE, 0*32+ 6) /* Physical Address Extensions */
-XEN_CPUFEATURE(MCE, 0*32+ 7) /* Machine Check Architecture */
-XEN_CPUFEATURE(CX8, 0*32+ 8) /* CMPXCHG8 instruction */
-XEN_CPUFEATURE(APIC, 0*32+ 9) /*! Onboard APIC */
-XEN_CPUFEATURE(SEP, 0*32+11) /* SYSENTER/SYSEXIT */
-XEN_CPUFEATURE(MTRR, 0*32+12) /* Memory Type Range Registers */
-XEN_CPUFEATURE(PGE, 0*32+13) /* Page Global Enable */
-XEN_CPUFEATURE(MCA, 0*32+14) /* Machine Check Architecture */
-XEN_CPUFEATURE(CMOV, 0*32+15) /* CMOV instruction (FCMOVCC and
FCOMI too if FPU present) */
-XEN_CPUFEATURE(PAT, 0*32+16) /* Page Attribute Table */
-XEN_CPUFEATURE(PSE36, 0*32+17) /* 36-bit PSEs */
-XEN_CPUFEATURE(CLFLUSH, 0*32+19) /* CLFLUSH instruction */
+XEN_CPUFEATURE(FPU, 0*32+ 0) /*A Onboard FPU */
+XEN_CPUFEATURE(VME, 0*32+ 1) /*S Virtual Mode Extensions */
+XEN_CPUFEATURE(DE, 0*32+ 2) /*A Debugging Extensions */
+XEN_CPUFEATURE(PSE, 0*32+ 3) /*S Page Size Extensions */
+XEN_CPUFEATURE(TSC, 0*32+ 4) /*A Time Stamp Counter */
+XEN_CPUFEATURE(MSR, 0*32+ 5) /*A Model-Specific Registers, RDMSR,
WRMSR */
+XEN_CPUFEATURE(PAE, 0*32+ 6) /*A Physical Address Extensions */
+XEN_CPUFEATURE(MCE, 0*32+ 7) /*A Machine Check Architecture */
+XEN_CPUFEATURE(CX8, 0*32+ 8) /*A CMPXCHG8 instruction */
+XEN_CPUFEATURE(APIC, 0*32+ 9) /*!A Onboard APIC */
+XEN_CPUFEATURE(SEP, 0*32+11) /*A SYSENTER/SYSEXIT */
+XEN_CPUFEATURE(MTRR, 0*32+12) /*S Memory Type Range Registers */
+XEN_CPUFEATURE(PGE, 0*32+13) /*S Page Global Enable */
+XEN_CPUFEATURE(MCA, 0*32+14) /*A Machine Check Architecture */
+XEN_CPUFEATURE(CMOV, 0*32+15) /*A CMOV instruction (FCMOVCC and
FCOMI too if FPU present) */
+XEN_CPUFEATURE(PAT, 0*32+16) /*A Page Attribute Table */
+XEN_CPUFEATURE(PSE36, 0*32+17) /*S 36-bit PSEs */
+XEN_CPUFEATURE(CLFLUSH, 0*32+19) /*A CLFLUSH instruction */
XEN_CPUFEATURE(DS, 0*32+21) /* Debug Store */
-XEN_CPUFEATURE(ACPI, 0*32+22) /* ACPI via MSR */
-XEN_CPUFEATURE(MMX, 0*32+23) /* Multimedia Extensions */
-XEN_CPUFEATURE(FXSR, 0*32+24) /* FXSAVE and FXRSTOR instructions */
-XEN_CPUFEATURE(SSE, 0*32+25) /* Streaming SIMD Extensions */
-XEN_CPUFEATURE(SSE2, 0*32+26) /* Streaming SIMD Extensions-2 */
-XEN_CPUFEATURE(HTT, 0*32+28) /*! Hyper-Threading Technology */
+XEN_CPUFEATURE(ACPI, 0*32+22) /*A ACPI via MSR */
+XEN_CPUFEATURE(MMX, 0*32+23) /*A Multimedia Extensions */
+XEN_CPUFEATURE(FXSR, 0*32+24) /*A FXSAVE and FXRSTOR instructions */
+XEN_CPUFEATURE(SSE, 0*32+25) /*A Streaming SIMD Extensions */
+XEN_CPUFEATURE(SSE2, 0*32+26) /*A Streaming SIMD Extensions-2 */
+XEN_CPUFEATURE(HTT, 0*32+28) /*!A Hyper-Threading Technology */
XEN_CPUFEATURE(TM1, 0*32+29) /* Thermal Monitor 1 */
XEN_CPUFEATURE(PBE, 0*32+31) /* Pending Break Enable */
/* Intel-defined CPU features, CPUID level 0x00000001.ecx, word 1 */
-XEN_CPUFEATURE(SSE3, 1*32+ 0) /* Streaming SIMD Extensions-3 */
-XEN_CPUFEATURE(PCLMULQDQ, 1*32+ 1) /* Carry-less mulitplication */
+XEN_CPUFEATURE(SSE3, 1*32+ 0) /*A Streaming SIMD Extensions-3 */
+XEN_CPUFEATURE(PCLMULQDQ, 1*32+ 1) /*A Carry-less mulitplication */
XEN_CPUFEATURE(DTES64, 1*32+ 2) /* 64-bit Debug Store */
XEN_CPUFEATURE(MONITOR, 1*32+ 3) /* Monitor/Mwait support */
XEN_CPUFEATURE(DSCPL, 1*32+ 4) /* CPL Qualified Debug Store */
-XEN_CPUFEATURE(VMX, 1*32+ 5) /* Virtual Machine Extensions */
+XEN_CPUFEATURE(VMX, 1*32+ 5) /*S Virtual Machine Extensions */
XEN_CPUFEATURE(SMX, 1*32+ 6) /* Safer Mode Extensions */
XEN_CPUFEATURE(EIST, 1*32+ 7) /* Enhanced SpeedStep */
XEN_CPUFEATURE(TM2, 1*32+ 8) /* Thermal Monitor 2 */
-XEN_CPUFEATURE(SSSE3, 1*32+ 9) /* Supplemental Streaming SIMD
Extensions-3 */
-XEN_CPUFEATURE(FMA, 1*32+12) /* Fused Multiply Add */
-XEN_CPUFEATURE(CX16, 1*32+13) /* CMPXCHG16B */
+XEN_CPUFEATURE(SSSE3, 1*32+ 9) /*A Supplemental Streaming SIMD
Extensions-3 */
+XEN_CPUFEATURE(FMA, 1*32+12) /*A Fused Multiply Add */
+XEN_CPUFEATURE(CX16, 1*32+13) /*A CMPXCHG16B */
XEN_CPUFEATURE(XTPR, 1*32+14) /* Send Task Priority Messages */
XEN_CPUFEATURE(PDCM, 1*32+15) /* Perf/Debug Capability MSR */
-XEN_CPUFEATURE(PCID, 1*32+17) /* Process Context ID */
+XEN_CPUFEATURE(PCID, 1*32+17) /*H Process Context ID */
XEN_CPUFEATURE(DCA, 1*32+18) /* Direct Cache Access */
-XEN_CPUFEATURE(SSE4_1, 1*32+19) /* Streaming SIMD Extensions 4.1 */
-XEN_CPUFEATURE(SSE4_2, 1*32+20) /* Streaming SIMD Extensions 4.2 */
-XEN_CPUFEATURE(X2APIC, 1*32+21) /*! Extended xAPIC */
-XEN_CPUFEATURE(MOVBE, 1*32+22) /* movbe instruction */
-XEN_CPUFEATURE(POPCNT, 1*32+23) /* POPCNT instruction */
-XEN_CPUFEATURE(TSC_DEADLINE, 1*32+24) /* TSC Deadline Timer */
-XEN_CPUFEATURE(AESNI, 1*32+25) /* AES instructions */
-XEN_CPUFEATURE(XSAVE, 1*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */
+XEN_CPUFEATURE(SSE4_1, 1*32+19) /*A Streaming SIMD Extensions 4.1 */
+XEN_CPUFEATURE(SSE4_2, 1*32+20) /*A Streaming SIMD Extensions 4.2 */
+XEN_CPUFEATURE(X2APIC, 1*32+21) /*!A Extended xAPIC */
+XEN_CPUFEATURE(MOVBE, 1*32+22) /*A movbe instruction */
+XEN_CPUFEATURE(POPCNT, 1*32+23) /*A POPCNT instruction */
+XEN_CPUFEATURE(TSC_DEADLINE, 1*32+24) /*S TSC Deadline Timer */
+XEN_CPUFEATURE(AESNI, 1*32+25) /*A AES instructions */
+XEN_CPUFEATURE(XSAVE, 1*32+26) /*A XSAVE/XRSTOR/XSETBV/XGETBV */
XEN_CPUFEATURE(OSXSAVE, 1*32+27) /*! OSXSAVE */
-XEN_CPUFEATURE(AVX, 1*32+28) /* Advanced Vector Extensions */
-XEN_CPUFEATURE(F16C, 1*32+29) /* Half-precision convert instruction
*/
-XEN_CPUFEATURE(RDRAND, 1*32+30) /* Digital Random Number Generator */
-XEN_CPUFEATURE(HYPERVISOR, 1*32+31) /*! Running under some hypervisor */
+XEN_CPUFEATURE(AVX, 1*32+28) /*A Advanced Vector Extensions */
+XEN_CPUFEATURE(F16C, 1*32+29) /*A Half-precision convert instruction
*/
+XEN_CPUFEATURE(RDRAND, 1*32+30) /*A Digital Random Number Generator */
+XEN_CPUFEATURE(HYPERVISOR, 1*32+31) /*!A Running under some hypervisor */
/* AMD-defined CPU features, CPUID level 0x80000001.edx, word 2 */
-XEN_CPUFEATURE(SYSCALL, 2*32+11) /* SYSCALL/SYSRET */
-XEN_CPUFEATURE(NX, 2*32+20) /* Execute Disable */
-XEN_CPUFEATURE(MMXEXT, 2*32+22) /* AMD MMX extensions */
-XEN_CPUFEATURE(FFXSR, 2*32+25) /* FFXSR instruction optimizations */
-XEN_CPUFEATURE(PAGE1GB, 2*32+26) /* 1Gb large page support */
-XEN_CPUFEATURE(RDTSCP, 2*32+27) /* RDTSCP */
-XEN_CPUFEATURE(LM, 2*32+29) /* Long Mode (x86-64) */
-XEN_CPUFEATURE(3DNOWEXT, 2*32+30) /* AMD 3DNow! extensions */
-XEN_CPUFEATURE(3DNOW, 2*32+31) /* 3DNow! */
+XEN_CPUFEATURE(SYSCALL, 2*32+11) /*A SYSCALL/SYSRET */
+XEN_CPUFEATURE(NX, 2*32+20) /*A Execute Disable */
+XEN_CPUFEATURE(MMXEXT, 2*32+22) /*A AMD MMX extensions */
+XEN_CPUFEATURE(FFXSR, 2*32+25) /*A FFXSR instruction optimizations */
+XEN_CPUFEATURE(PAGE1GB, 2*32+26) /*H 1Gb large page support */
+XEN_CPUFEATURE(RDTSCP, 2*32+27) /*S RDTSCP */
+XEN_CPUFEATURE(LM, 2*32+29) /*A Long Mode (x86-64) */
+XEN_CPUFEATURE(3DNOWEXT, 2*32+30) /*A AMD 3DNow! extensions */
+XEN_CPUFEATURE(3DNOW, 2*32+31) /*A 3DNow! */
/* AMD-defined CPU features, CPUID level 0x80000001.ecx, word 3 */
-XEN_CPUFEATURE(LAHF_LM, 3*32+ 0) /* LAHF/SAHF in long mode */
-XEN_CPUFEATURE(CMP_LEGACY, 3*32+ 1) /*! If yes HyperThreading not valid */
-XEN_CPUFEATURE(SVM, 3*32+ 2) /* Secure virtual machine */
+XEN_CPUFEATURE(LAHF_LM, 3*32+ 0) /*A LAHF/SAHF in long mode */
+XEN_CPUFEATURE(CMP_LEGACY, 3*32+ 1) /*!A If yes HyperThreading not valid */
+XEN_CPUFEATURE(SVM, 3*32+ 2) /*S Secure virtual machine */
XEN_CPUFEATURE(EXTAPIC, 3*32+ 3) /* Extended APIC space */
-XEN_CPUFEATURE(CR8_LEGACY, 3*32+ 4) /* CR8 in 32-bit mode */
-XEN_CPUFEATURE(ABM, 3*32+ 5) /* Advanced bit manipulation */
-XEN_CPUFEATURE(SSE4A, 3*32+ 6) /* SSE-4A */
-XEN_CPUFEATURE(MISALIGNSSE, 3*32+ 7) /* Misaligned SSE mode */
-XEN_CPUFEATURE(3DNOWPREFETCH, 3*32+ 8) /* 3DNow prefetch instructions */
+XEN_CPUFEATURE(CR8_LEGACY, 3*32+ 4) /*S CR8 in 32-bit mode */
+XEN_CPUFEATURE(ABM, 3*32+ 5) /*A Advanced bit manipulation */
+XEN_CPUFEATURE(SSE4A, 3*32+ 6) /*A SSE-4A */
+XEN_CPUFEATURE(MISALIGNSSE, 3*32+ 7) /*A Misaligned SSE mode */
+XEN_CPUFEATURE(3DNOWPREFETCH, 3*32+ 8) /*A 3DNow prefetch instructions */
XEN_CPUFEATURE(OSVW, 3*32+ 9) /* OS Visible Workaround */
-XEN_CPUFEATURE(IBS, 3*32+10) /* Instruction Based Sampling */
-XEN_CPUFEATURE(XOP, 3*32+11) /* extended AVX instructions */
+XEN_CPUFEATURE(IBS, 3*32+10) /*S Instruction Based Sampling */
+XEN_CPUFEATURE(XOP, 3*32+11) /*A extended AVX instructions */
XEN_CPUFEATURE(SKINIT, 3*32+12) /* SKINIT/STGI instructions */
XEN_CPUFEATURE(WDT, 3*32+13) /* Watchdog timer */
-XEN_CPUFEATURE(LWP, 3*32+15) /* Light Weight Profiling */
-XEN_CPUFEATURE(FMA4, 3*32+16) /* 4 operands MAC instructions */
+XEN_CPUFEATURE(LWP, 3*32+15) /*S Light Weight Profiling */
+XEN_CPUFEATURE(FMA4, 3*32+16) /*A 4 operands MAC instructions */
XEN_CPUFEATURE(NODEID_MSR, 3*32+19) /* NodeId MSR */
-XEN_CPUFEATURE(TBM, 3*32+21) /* trailing bit manipulations */
+XEN_CPUFEATURE(TBM, 3*32+21) /*A trailing bit manipulations */
XEN_CPUFEATURE(TOPOEXT, 3*32+22) /* topology extensions CPUID leafs */
-XEN_CPUFEATURE(DBEXT, 3*32+26) /* data breakpoint extension */
+XEN_CPUFEATURE(DBEXT, 3*32+26) /*A data breakpoint extension */
XEN_CPUFEATURE(MONITORX, 3*32+29) /* MONITOR extension
(MONITORX/MWAITX) */
/* Intel-defined CPU features, CPUID level 0x0000000D:1.eax, word 4 */
-XEN_CPUFEATURE(XSAVEOPT, 4*32+ 0) /* XSAVEOPT instruction */
-XEN_CPUFEATURE(XSAVEC, 4*32+ 1) /* XSAVEC/XRSTORC instructions */
-XEN_CPUFEATURE(XGETBV1, 4*32+ 2) /* XGETBV with %ecx=1 */
-XEN_CPUFEATURE(XSAVES, 4*32+ 3) /* XSAVES/XRSTORS instructions */
+XEN_CPUFEATURE(XSAVEOPT, 4*32+ 0) /*A XSAVEOPT instruction */
+XEN_CPUFEATURE(XSAVEC, 4*32+ 1) /*A XSAVEC/XRSTORC instructions */
+XEN_CPUFEATURE(XGETBV1, 4*32+ 2) /*A XGETBV with %ecx=1 */
+XEN_CPUFEATURE(XSAVES, 4*32+ 3) /*S XSAVES/XRSTORS instructions */
/* Intel-defined CPU features, CPUID level 0x00000007:0.ebx, word 5 */
-XEN_CPUFEATURE(FSGSBASE, 5*32+ 0) /* {RD,WR}{FS,GS}BASE instructions */
-XEN_CPUFEATURE(TSC_ADJUST, 5*32+ 1) /* TSC_ADJUST MSR available */
-XEN_CPUFEATURE(BMI1, 5*32+ 3) /* 1st bit manipulation extensions */
-XEN_CPUFEATURE(HLE, 5*32+ 4) /* Hardware Lock Elision */
-XEN_CPUFEATURE(AVX2, 5*32+ 5) /* AVX2 instructions */
+XEN_CPUFEATURE(FSGSBASE, 5*32+ 0) /*A {RD,WR}{FS,GS}BASE instructions */
+XEN_CPUFEATURE(TSC_ADJUST, 5*32+ 1) /*S TSC_ADJUST MSR available */
+XEN_CPUFEATURE(BMI1, 5*32+ 3) /*A 1st bit manipulation extensions */
+XEN_CPUFEATURE(HLE, 5*32+ 4) /*A Hardware Lock Elision */
+XEN_CPUFEATURE(AVX2, 5*32+ 5) /*A AVX2 instructions */
XEN_CPUFEATURE(FDP_EXCP_ONLY, 5*32+ 6) /*! x87 FDP only updated on exception.
*/
-XEN_CPUFEATURE(SMEP, 5*32+ 7) /* Supervisor Mode Execution
Protection */
-XEN_CPUFEATURE(BMI2, 5*32+ 8) /* 2nd bit manipulation extensions */
-XEN_CPUFEATURE(ERMS, 5*32+ 9) /* Enhanced REP MOVSB/STOSB */
-XEN_CPUFEATURE(INVPCID, 5*32+10) /* Invalidate Process Context ID */
-XEN_CPUFEATURE(RTM, 5*32+11) /* Restricted Transactional Memory */
+XEN_CPUFEATURE(SMEP, 5*32+ 7) /*S Supervisor Mode Execution
Protection */
+XEN_CPUFEATURE(BMI2, 5*32+ 8) /*A 2nd bit manipulation extensions */
+XEN_CPUFEATURE(ERMS, 5*32+ 9) /*A Enhanced REP MOVSB/STOSB */
+XEN_CPUFEATURE(INVPCID, 5*32+10) /*H Invalidate Process Context ID */
+XEN_CPUFEATURE(RTM, 5*32+11) /*A Restricted Transactional Memory */
XEN_CPUFEATURE(PQM, 5*32+12) /* Platform QoS Monitoring */
XEN_CPUFEATURE(NO_FPU_SEL, 5*32+13) /*! FPU CS/DS stored as zero */
-XEN_CPUFEATURE(MPX, 5*32+14) /* Memory Protection Extensions */
+XEN_CPUFEATURE(MPX, 5*32+14) /*S Memory Protection Extensions */
XEN_CPUFEATURE(PQE, 5*32+15) /* Platform QoS Enforcement */
-XEN_CPUFEATURE(RDSEED, 5*32+18) /* RDSEED instruction */
-XEN_CPUFEATURE(ADX, 5*32+19) /* ADCX, ADOX instructions */
-XEN_CPUFEATURE(SMAP, 5*32+20) /* Supervisor Mode Access Prevention
*/
-XEN_CPUFEATURE(PCOMMIT, 5*32+22) /* PCOMMIT instruction */
-XEN_CPUFEATURE(CLFLUSHOPT, 5*32+23) /* CLFLUSHOPT instruction */
-XEN_CPUFEATURE(CLWB, 5*32+24) /* CLWB instruction */
-XEN_CPUFEATURE(SHA, 5*32+29) /* SHA1 & SHA256 instructions */
+XEN_CPUFEATURE(RDSEED, 5*32+18) /*A RDSEED instruction */
+XEN_CPUFEATURE(ADX, 5*32+19) /*A ADCX, ADOX instructions */
+XEN_CPUFEATURE(SMAP, 5*32+20) /*S Supervisor Mode Access Prevention
*/
+XEN_CPUFEATURE(PCOMMIT, 5*32+22) /*A PCOMMIT instruction */
+XEN_CPUFEATURE(CLFLUSHOPT, 5*32+23) /*A CLFLUSHOPT instruction */
+XEN_CPUFEATURE(CLWB, 5*32+24) /*A CLWB instruction */
+XEN_CPUFEATURE(SHA, 5*32+29) /*A SHA1 & SHA256 instructions */
/* Intel-defined CPU features, CPUID level 0x00000007:0.ecx, word 6 */
-XEN_CPUFEATURE(PREFETCHWT1, 6*32+ 0) /* PREFETCHWT1 instruction */
-XEN_CPUFEATURE(PKU, 6*32+ 3) /* Protection Keys for Userspace */
+XEN_CPUFEATURE(PREFETCHWT1, 6*32+ 0) /*A PREFETCHWT1 instruction */
+XEN_CPUFEATURE(PKU, 6*32+ 3) /*H Protection Keys for Userspace */
XEN_CPUFEATURE(OSPKE, 6*32+ 4) /*! OS Protection Keys Enable */
/* AMD-defined CPU features, CPUID level 0x80000007.edx, word 7 */
@@ -217,7 +223,7 @@ XEN_CPUFEATURE(ITSC, 7*32+ 8) /* Invariant TSC */
XEN_CPUFEATURE(EFRO, 7*32+10) /* APERF/MPERF Read Only interface */
/* AMD-defined CPU features, CPUID level 0x80000008.ebx, word 8 */
-XEN_CPUFEATURE(CLZERO, 8*32+ 0) /* CLZERO instruction */
+XEN_CPUFEATURE(CLZERO, 8*32+ 0) /*A CLZERO instruction */
#endif /* XEN_CPUFEATURE */
diff --git a/xen/tools/gen-cpuid.py b/xen/tools/gen-cpuid.py
index 46ef6d1..f971ab2 100755
--- a/xen/tools/gen-cpuid.py
+++ b/xen/tools/gen-cpuid.py
@@ -17,12 +17,18 @@ class State(object):
# State parsed from input
self.names = {} # Name => value mapping
self.raw_special = set()
+ self.raw_pv = set()
+ self.raw_hvm_shadow = set()
+ self.raw_hvm_hap = set()
# State calculated
self.nr_entries = 0 # Number of words in a featureset
self.common_1d = 0 # Common features between 1d and e1d
self.known = [] # All known features
self.special = [] # Features with special semantics
+ self.pv = []
+ self.hvm_shadow = []
+ self.hvm_hap = []
def parse_definitions(state):
"""
@@ -32,7 +38,7 @@ def parse_definitions(state):
feat_regex = re.compile(
r"^XEN_CPUFEATURE\(([A-Z0-9_]+),"
"\s+([\s\d]+\*[\s\d]+\+[\s\d]+)\)"
- "\s+/\*([!]*) .*$")
+ "\s+/\*([\w!]*) .*$")
this = sys.modules[__name__]
@@ -72,6 +78,16 @@ def parse_definitions(state):
if a == "!":
state.raw_special.add(val)
+ elif a in "ASH":
+ if a == "A":
+ state.raw_pv.add(val)
+ state.raw_hvm_shadow.add(val)
+ state.raw_hvm_hap.add(val)
+ elif attr == "S":
+ state.raw_hvm_shadow.add(val)
+ state.raw_hvm_hap.add(val)
+ elif attr == "H":
+ state.raw_hvm_hap.add(val)
else:
raise Fail("Unrecognised attribute '%s' for %s" % (a, name))
@@ -124,6 +140,9 @@ def crunch_numbers(state):
state.common_1d = featureset_to_uint32s(common_1d, 1)[0]
state.special = featureset_to_uint32s(state.raw_special, nr_entries)
+ state.pv = featureset_to_uint32s(state.raw_pv, nr_entries)
+ state.hvm_shadow = featureset_to_uint32s(state.raw_hvm_shadow, nr_entries)
+ state.hvm_hap = featureset_to_uint32s(state.raw_hvm_hap, nr_entries)
def write_results(state):
@@ -144,11 +163,20 @@ def write_results(state):
#define INIT_KNOWN_FEATURES { \\\n%s\n}
-#define INIT_SPECIAL_FEATURES { \\\n%s\n}
+#define INIT_SPECIAL_FEATURES { \\\n%s\n}
+
+#define INIT_PV_FEATURES { \\\n%s\n}
+
+#define INIT_HVM_SHADOW_FEATURES { \\\n%s\n}
+
+#define INIT_HVM_HAP_FEATURES { \\\n%s\n}
""" % (state.nr_entries,
state.common_1d,
format_uint32s(state.known, 4),
format_uint32s(state.special, 4),
+ format_uint32s(state.pv, 4),
+ format_uint32s(state.hvm_shadow, 4),
+ format_uint32s(state.hvm_hap, 4),
))
state.output.write(
--
2.1.4
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