LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: isaku.yamahata@intel.com, David Matlack <dmatlack@google.com>,
	seanjc@google.com, peterx@redhat.com
Subject: [PATCH 08/16] KVM: MMU: change handle_abnormal_pfn() arguments to kvm_page_fault
Date: Sat,  7 Aug 2021 09:49:28 -0400	[thread overview]
Message-ID: <20210807134936.3083984-9-pbonzini@redhat.com> (raw)
In-Reply-To: <20210807134936.3083984-1-pbonzini@redhat.com>

Pass struct kvm_page_fault to handle_abnormal_pfn() instead of
extracting the arguments from the struct.

Suggested-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/mmu/mmu.c         | 17 ++++++++---------
 arch/x86/kvm/mmu/paging_tmpl.h |  2 +-
 2 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index a6366f1c4197..cec59ac2e1cd 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -3024,18 +3024,18 @@ static int kvm_handle_bad_page(struct kvm_vcpu *vcpu, gfn_t gfn, kvm_pfn_t pfn)
 	return -EFAULT;
 }
 
-static bool handle_abnormal_pfn(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn,
-				kvm_pfn_t pfn, unsigned int access,
-				int *ret_val)
+static bool handle_abnormal_pfn(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault,
+				unsigned int access, int *ret_val)
 {
 	/* The pfn is invalid, report the error! */
-	if (unlikely(is_error_pfn(pfn))) {
-		*ret_val = kvm_handle_bad_page(vcpu, gfn, pfn);
+	if (unlikely(is_error_pfn(fault->pfn))) {
+		*ret_val = kvm_handle_bad_page(vcpu, fault->gfn, fault->pfn);
 		return true;
 	}
 
-	if (unlikely(is_noslot_pfn(pfn))) {
-		vcpu_cache_mmio_info(vcpu, gva, gfn,
+	if (unlikely(is_noslot_pfn(fault->pfn))) {
+		gva_t gva = fault->is_tdp ? 0 : fault->addr;
+		vcpu_cache_mmio_info(vcpu, gva, fault->gfn,
 				     access & shadow_mmio_access_mask);
 		/*
 		 * If MMIO caching is disabled, emulate immediately without
@@ -3904,8 +3904,7 @@ static int direct_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault
 	if (try_async_pf(vcpu, fault))
 		return RET_PF_RETRY;
 
-	if (handle_abnormal_pfn(vcpu, fault->is_tdp ? 0 : gpa,
-	                        fault->gfn, fault->pfn, ACC_ALL, &r))
+	if (handle_abnormal_pfn(vcpu, fault, ACC_ALL, &r))
 		return r;
 
 	r = RET_PF_RETRY;
diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h
index 6ead472674ad..9b90097dea22 100644
--- a/arch/x86/kvm/mmu/paging_tmpl.h
+++ b/arch/x86/kvm/mmu/paging_tmpl.h
@@ -882,7 +882,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault
 	if (try_async_pf(vcpu, fault))
 		return RET_PF_RETRY;
 
-	if (handle_abnormal_pfn(vcpu, addr, fault->gfn, fault->pfn, walker.pte_access, &r))
+	if (handle_abnormal_pfn(vcpu, fault, walker.pte_access, &r))
 		return r;
 
 	/*
-- 
2.27.0



  parent reply	other threads:[~2021-08-07 13:50 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-07 13:49 [PATCH 00/16] KVM: x86: pass arguments on the page fault path via struct kvm_page_fault Paolo Bonzini
2021-08-07 13:49 ` [PATCH 01/16] KVM: MMU: pass unadulterated gpa to direct_page_fault Paolo Bonzini
2021-09-01 22:54   ` Sean Christopherson
2021-08-07 13:49 ` [PATCH 02/16] KVM: x86: clamp host mapping level to max_level in kvm_mmu_max_mapping_level Paolo Bonzini
2021-08-13 16:28   ` Sean Christopherson
2021-08-07 13:49 ` [PATCH 03/16] KVM: MMU: Introduce struct kvm_page_fault Paolo Bonzini
2021-08-07 13:49 ` [PATCH 04/16] KVM: MMU: change mmu->page_fault() arguments to kvm_page_fault Paolo Bonzini
2021-08-07 13:49 ` [PATCH 05/16] KVM: MMU: change direct_page_fault() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 06/16] KVM: MMU: change page_fault_handle_page_track() " Paolo Bonzini
2021-09-01 23:04   ` Sean Christopherson
2021-08-07 13:49 ` [PATCH 07/16] KVM: MMU: change try_async_pf() " Paolo Bonzini
2021-09-01 23:05   ` Sean Christopherson
2021-08-07 13:49 ` Paolo Bonzini [this message]
2021-09-01 23:15   ` [PATCH 08/16] KVM: MMU: change handle_abnormal_pfn() " Sean Christopherson
2021-08-07 13:49 ` [PATCH 09/16] KVM: MMU: change __direct_map() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 10/16] KVM: MMU: change FNAME(fetch)() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 11/16] KVM: MMU: change kvm_tdp_mmu_map() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 12/16] KVM: MMU: change tdp_mmu_map_handle_target_level() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 13/16] KVM: MMU: change fast_page_fault() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 14/16] KVM: MMU: change kvm_mmu_hugepage_adjust() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 15/16] KVM: MMU: change disallowed_hugepage_adjust() " Paolo Bonzini
2021-08-07 13:49 ` [PATCH 16/16] KVM: MMU: change tracepoints " Paolo Bonzini
2021-09-01 23:28   ` Sean Christopherson
2021-08-12 17:44 ` [PATCH 00/16] KVM: x86: pass arguments on the page fault path via struct kvm_page_fault David Matlack

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210807134936.3083984-9-pbonzini@redhat.com \
    --to=pbonzini@redhat.com \
    --cc=dmatlack@google.com \
    --cc=isaku.yamahata@intel.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=peterx@redhat.com \
    --cc=seanjc@google.com \
    --subject='Re: [PATCH 08/16] KVM: MMU: change handle_abnormal_pfn() arguments to kvm_page_fault' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).