From: tip-bot for Borislav Petkov <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: brgerst@gmail.com, luto@amacapital.net,
torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, dvlasenk@redhat.com, tglx@linutronix.de,
bp@alien8.de, mingo@kernel.org, hpa@zytor.com,
peterz@infradead.org, bp@suse.de
Subject: [tip:x86/asm] x86/cpufeature: Replace cpu_has_xsaves with boot_cpu_has() usage
Date: Wed, 13 Apr 2016 04:40:35 -0700 [thread overview]
Message-ID: <tip-782511b00f749cfebc0cb5d6ce960de5410c221d@git.kernel.org> (raw)
In-Reply-To: <1459801503-15600-11-git-send-email-bp@alien8.de>
Commit-ID: 782511b00f749cfebc0cb5d6ce960de5410c221d
Gitweb: http://git.kernel.org/tip/782511b00f749cfebc0cb5d6ce960de5410c221d
Author: Borislav Petkov <bp@suse.de>
AuthorDate: Mon, 4 Apr 2016 22:25:03 +0200
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 13 Apr 2016 11:37:42 +0200
x86/cpufeature: Replace cpu_has_xsaves with boot_cpu_has() usage
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <kvm@vger.kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1459801503-15600-11-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/include/asm/cpufeature.h | 6 ------
arch/x86/kernel/fpu/xstate.c | 10 +++++-----
arch/x86/kvm/vmx.c | 2 +-
arch/x86/kvm/x86.c | 4 ++--
4 files changed, 8 insertions(+), 14 deletions(-)
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 732a00f..07c942d 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -118,12 +118,6 @@ extern const char * const x86_bug_flags[NBUGINTS*32];
set_bit(bit, (unsigned long *)cpu_caps_set); \
} while (0)
-#define cpu_has_xsaves boot_cpu_has(X86_FEATURE_XSAVES)
-/*
- * Do not add any more of those clumsy macros - use static_cpu_has() for
- * fast paths and boot_cpu_has() otherwise!
- */
-
#if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_X86_FAST_FEATURE_TESTS)
/*
* Static testing of CPU features. Used the same as boot_cpu_has().
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index 18b9fd8..4ea2a59 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -280,7 +280,7 @@ static void __init setup_xstate_comp(void)
xstate_comp_offsets[0] = 0;
xstate_comp_offsets[1] = offsetof(struct fxregs_state, xmm_space);
- if (!cpu_has_xsaves) {
+ if (!boot_cpu_has(X86_FEATURE_XSAVES)) {
for (i = FIRST_EXTENDED_XFEATURE; i < XFEATURE_MAX; i++) {
if (xfeature_enabled(i)) {
xstate_comp_offsets[i] = xstate_offsets[i];
@@ -322,7 +322,7 @@ static void __init setup_init_fpu_buf(void)
setup_xstate_features();
print_xstate_features();
- if (cpu_has_xsaves) {
+ if (boot_cpu_has(X86_FEATURE_XSAVES)) {
init_fpstate.xsave.header.xcomp_bv = (u64)1 << 63 | xfeatures_mask;
init_fpstate.xsave.header.xfeatures = xfeatures_mask;
}
@@ -417,7 +417,7 @@ static int xfeature_size(int xfeature_nr)
*/
static int using_compacted_format(void)
{
- return cpu_has_xsaves;
+ return boot_cpu_has(X86_FEATURE_XSAVES);
}
static void __xstate_dump_leaves(void)
@@ -549,7 +549,7 @@ static unsigned int __init calculate_xstate_size(void)
unsigned int eax, ebx, ecx, edx;
unsigned int calculated_xstate_size;
- if (!cpu_has_xsaves) {
+ if (!boot_cpu_has(X86_FEATURE_XSAVES)) {
/*
* - CPUID function 0DH, sub-function 0:
* EBX enumerates the size (in bytes) required by
@@ -667,7 +667,7 @@ void __init fpu__init_system_xstate(void)
pr_info("x86/fpu: Enabled xstate features 0x%llx, context size is %d bytes, using '%s' format.\n",
xfeatures_mask,
xstate_size,
- cpu_has_xsaves ? "compacted" : "standard");
+ boot_cpu_has(X86_FEATURE_XSAVES) ? "compacted" : "standard");
}
/*
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index ee1c8a9..d5908bd 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3386,7 +3386,7 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
}
}
- if (cpu_has_xsaves)
+ if (boot_cpu_has(X86_FEATURE_XSAVES))
rdmsrl(MSR_IA32_XSS, host_xss);
return 0;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4eb2fca..33102de 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3095,7 +3095,7 @@ static void load_xsave(struct kvm_vcpu *vcpu, u8 *src)
/* Set XSTATE_BV and possibly XCOMP_BV. */
xsave->header.xfeatures = xstate_bv;
- if (cpu_has_xsaves)
+ if (boot_cpu_has(X86_FEATURE_XSAVES))
xsave->header.xcomp_bv = host_xcr0 | XSTATE_COMPACTION_ENABLED;
/*
@@ -7292,7 +7292,7 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
static void fx_init(struct kvm_vcpu *vcpu)
{
fpstate_init(&vcpu->arch.guest_fpu.state);
- if (cpu_has_xsaves)
+ if (boot_cpu_has(X86_FEATURE_XSAVES))
vcpu->arch.guest_fpu.state.xsave.header.xcomp_bv =
host_xcr0 | XSTATE_COMPACTION_ENABLED;
prev parent reply other threads:[~2016-04-13 11:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-04 20:24 [PATCH 00/10] x86/cpufeature: Bye bye cpu_has_YYY Borislav Petkov
2016-04-04 20:24 ` [PATCH 01/10] x86/cpufeature: Remove cpu_has_avx2 Borislav Petkov
2016-04-13 11:37 ` [tip:x86/asm] x86/cpufeature: Replace cpu_has_avx2 with boot_cpu_has() usage tip-bot for Borislav Petkov
2016-04-04 20:24 ` [PATCH 02/10] x86/cpufeature: Remove cpu_has_aes Borislav Petkov
2016-04-13 11:37 ` [tip:x86/asm] x86/cpufeature: Replace cpu_has_aes with boot_cpu_has() usage tip-bot for Borislav Petkov
2016-04-04 20:24 ` [PATCH 03/10] x86/cpufeature: Remove cpu_has_avx Borislav Petkov
2016-04-13 11:37 ` [tip:x86/asm] x86/cpufeature: Replace cpu_has_avx with boot_cpu_has() usage tip-bot for Borislav Petkov
2016-04-04 20:24 ` [PATCH 04/10] x86/cpufeature: Remove cpu_has_xmm Borislav Petkov
2016-04-13 11:38 ` [tip:x86/asm] x86/cpufeature: Replace cpu_has_xmm with boot_cpu_has() usage tip-bot for Borislav Petkov
2016-04-04 20:24 ` [PATCH 05/10] x86/cpufeature: Remove cpu_has_fpu Borislav Petkov
2016-04-13 11:38 ` [tip:x86/asm] x86/cpufeature: Replace cpu_has_fpu with boot_cpu_has() usage tip-bot for Borislav Petkov
2016-04-04 20:24 ` [PATCH 06/10] x86/cpufeature: Remove cpu_has_tsc Borislav Petkov
2016-04-13 11:39 ` [tip:x86/asm] x86/cpufeature: Replace cpu_has_tsc with boot_cpu_has() usage tip-bot for Borislav Petkov
2016-04-04 20:25 ` [PATCH 07/10] x86/cpufeature: Remove cpu_has_apic Borislav Petkov
2016-04-13 11:39 ` [tip:x86/asm] x86/cpufeature: Replace cpu_has_apic with boot_cpu_has() usage tip-bot for Borislav Petkov
2016-04-04 20:25 ` [PATCH 08/10] x86/cpufeature: Remove cpu_has_fxsr Borislav Petkov
2016-04-13 11:39 ` [tip:x86/asm] x86/cpufeature: Replace cpu_has_fxsr with boot_cpu_has() usage tip-bot for Borislav Petkov
2016-04-04 20:25 ` [PATCH 09/10] x86/cpufeature: Remove cpu_has_xsave Borislav Petkov
2016-04-13 11:40 ` [tip:x86/asm] x86/cpufeature: Replace cpu_has_xsave with boot_cpu_has() usage tip-bot for Borislav Petkov
2016-04-04 20:25 ` [PATCH 10/10] x86/cpufeature: Remove cpu_has_xsaves Borislav Petkov
2016-04-13 11:40 ` tip-bot for Borislav Petkov [this message]
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