From: Lai Jiangshan <jiangshanlai@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: kvm@vger.kernel.org, Lai Jiangshan <laijs@linux.alibaba.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH 09/15] KVM: SVM: Allocate sd->save_area with __GFP_ZERO
Date: Thu, 18 Nov 2021 19:08:08 +0800 [thread overview]
Message-ID: <20211118110814.2568-10-jiangshanlai@gmail.com> (raw)
In-Reply-To: <20211118110814.2568-1-jiangshanlai@gmail.com>
From: Lai Jiangshan <laijs@linux.alibaba.com>
And remove clear_page() on it.
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
---
arch/x86/kvm/svm/svm.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 33b434fd5d9b..d855ba664fc2 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -585,12 +585,10 @@ static int svm_cpu_init(int cpu)
if (!sd)
return ret;
sd->cpu = cpu;
- sd->save_area = alloc_page(GFP_KERNEL);
+ sd->save_area = alloc_page(GFP_KERNEL | __GFP_ZERO);
if (!sd->save_area)
goto free_cpu_data;
- clear_page(page_address(sd->save_area));
-
ret = sev_cpu_init(sd);
if (ret)
goto free_save_area;
--
2.19.1.6.gb485710b
next prev parent reply other threads:[~2021-11-18 11:12 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-18 11:07 [PATCH 00/15] KVM: X86: Miscellaneous cleanups Lai Jiangshan
2021-11-18 11:08 ` [PATCH 01/15] KVM: VMX: Use x86 core API to access to fs_base and inactive gs_base Lai Jiangshan
2021-11-18 16:05 ` Paolo Bonzini
2021-11-21 15:17 ` Thomas Gleixner
2021-11-22 3:27 ` Lai Jiangshan
2021-11-18 11:08 ` [PATCH 02/15] KVM: VMX: Avoid to rdmsrl(MSR_IA32_SYSENTER_ESP) Lai Jiangshan
2021-11-18 11:18 ` Paolo Bonzini
2021-11-18 14:17 ` Lai Jiangshan
2021-11-18 14:38 ` Paolo Bonzini
2021-11-18 11:08 ` [PATCH 03/15] KVM: VMX: Update msr value after kvm_set_user_return_msr() succeeds Lai Jiangshan
2021-11-18 11:08 ` [PATCH 04/15] KVM: VMX: Save HOST_CR3 in vmx_prepare_switch_to_guest() Lai Jiangshan
2021-11-18 11:08 ` [PATCH 05/15] KVM: VMX: Add document to state that write to uret msr should always be intercepted Lai Jiangshan
2021-11-18 16:05 ` Paolo Bonzini
2021-12-07 20:38 ` Sean Christopherson
2021-11-18 11:08 ` [PATCH 06/15] KVM: VMX: Use kvm_set_msr_common() for MSR_IA32_TSC_ADJUST in the default way Lai Jiangshan
2021-11-18 11:08 ` [PATCH 07/15] KVM: VMX: Change comments about vmx_get_msr() Lai Jiangshan
2021-11-18 11:08 ` [PATCH 08/15] KVM: SVM: Rename get_max_npt_level() to get_npt_level() Lai Jiangshan
2021-11-18 11:08 ` Lai Jiangshan [this message]
2021-11-18 11:08 ` [PATCH 10/15] KVM: X86: Skip allocating pae_root for vcpu->arch.guest_mmu when !tdp_enabled Lai Jiangshan
2021-11-18 11:08 ` [PATCH 11/15] KVM: X86: Fix comment in __kvm_mmu_create() Lai Jiangshan
2021-11-18 11:08 ` [PATCH 12/15] KVM: X86: Remove unused declaration of __kvm_mmu_free_some_pages() Lai Jiangshan
2021-11-18 11:08 ` [PATCH 13/15] KVM: X86: Remove useless code to set role.gpte_is_8_bytes when role.direct Lai Jiangshan
2021-11-18 11:08 ` [PATCH 14/15] KVM: X86: Calculate quadrant when !role.gpte_is_8_bytes Lai Jiangshan
2021-11-18 11:08 ` [PATCH 15/15] KVM: X86: Always set gpte_is_8_bytes when direct map Lai Jiangshan
2021-11-18 11:12 ` Paolo Bonzini
2021-11-18 14:34 ` Lai Jiangshan
2021-11-18 15:01 ` Paolo Bonzini
2021-11-19 10:30 ` Lai Jiangshan
2021-11-19 10:34 ` Paolo Bonzini
2021-11-19 10:42 ` Lai Jiangshan
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