mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com>
To: <kvm@vger.kernel.org>, <seanjc@google.com>, <pbonzini@redhat.com>
Cc: <linux-kernel@vger.kernel.org>, <Thomas.Lendacky@amd.com>,
	<nikunj@amd.com>, <Santosh.Shukla@amd.com>,
	<Vasant.Hegde@amd.com>, <Suravee.Suthikulpanit@amd.com>,
	<bp@alien8.de>, <David.Kaplan@amd.com>, <huibo.wang@amd.com>,
	<naveen.rao@amd.com>, <pgonda@google.com>,
	<linux-kselftest@vger.kernel.org>, <shuah@kernel.org>
Subject: [RFC PATCH 11/31] KVM: selftests: Skip vm_is_gpa_protected() call for APIC MMIO base
Date: Fri, 28 Feb 2025 15:00:04 +0530	[thread overview]
Message-ID: <20250228093024.114983-12-Neeraj.Upadhyay@amd.com> (raw)
In-Reply-To: <20250228093024.114983-1-Neeraj.Upadhyay@amd.com>

Skip vm_is_gpa_protected() call for APIC MMIO address in __virt_pg_map().
Without this change, the virt_pg_map() fails with below error for
APIC MMIO address.

    No vm physical memory at 0xfee00000

Signed-off-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com>
---
 tools/testing/selftests/kvm/lib/x86/processor.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/kvm/lib/x86/processor.c b/tools/testing/selftests/kvm/lib/x86/processor.c
index 7129dfb652c4..197110ff1380 100644
--- a/tools/testing/selftests/kvm/lib/x86/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86/processor.c
@@ -8,6 +8,7 @@
 #include "kvm_util.h"
 #include "processor.h"
 #include "sev.h"
+#include "apic.h"
 
 #ifndef NUM_INTERRUPTS
 #define NUM_INTERRUPTS 256
@@ -227,6 +228,11 @@ void __virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr, int level)
 		    "PTE already present for 4k page at vaddr: 0x%lx", vaddr);
 	*pte = PTE_PRESENT_MASK | PTE_WRITABLE_MASK | (paddr & PHYSICAL_PAGE_MASK);
 
+	if (paddr == APIC_DEFAULT_GPA) {
+		*pte |= vm->arch.s_bit;
+		return;
+	}
+
 	/*
 	 * Neither SEV nor TDX supports shared page tables, so only the final
 	 * leaf PTE needs manually set the C/S-bit.
-- 
2.34.1


  parent reply	other threads:[~2025-02-28  9:46 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-28  9:29 [RFC PATCH 00/31] AMD: Add Secure AVIC KVM selftests Neeraj Upadhyay
2025-02-28  9:29 ` [RFC PATCH 01/31] Add GHCB with setters and getters Neeraj Upadhyay
2025-02-28  9:29 ` [RFC PATCH 02/31] Add arch specific additional guest pages Neeraj Upadhyay
2025-02-28  9:29 ` [RFC PATCH 03/31] Add vm_vaddr_alloc_pages_shared() Neeraj Upadhyay
2025-02-28  9:29 ` [RFC PATCH 04/31] Add GHCB allocations and helpers Neeraj Upadhyay
2025-02-28  9:29 ` [RFC PATCH 05/31] Add is_sev_enabled() helpers Neeraj Upadhyay
2025-02-28  9:29 ` [RFC PATCH 06/31] Add ability for SEV-ES guests to use ucalls via GHCB Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 07/31] KVM: selftests: Fix ghcb_entry returned in ghcb_alloc() Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 08/31] KVM: selftests: Make GHCB entry page size aligned Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 09/31] KVM: selftests: Add support for #VC in x86 exception handlers Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 10/31] KVM: selftests: Add MSR VC handling support for SEV-ES VMs Neeraj Upadhyay
2025-02-28  9:30 ` Neeraj Upadhyay [this message]
2025-02-28  9:30 ` [RFC PATCH 12/31] KVM: selftests: Add instruction decoding support Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 13/31] " Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 14/31] KVM: selftests: Add MMIO VC exception handling for SEV-ES guests Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 15/31] KVM: selftests: Add instruction decoding for movabs instructions Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 16/31] KVM: selftests: Add SEV guests support in xapic_state_test Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 17/31] KVM: selftests: Add x2apic mode testing in xapic_ipi_test Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 18/31] KVM: selftests: Add SEV VM support " Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 19/31] KVM: selftests: Add Secure AVIC lib Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 20/31] KVM: selftests: Add unaccelerated APIC msrs #VC handling Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 21/31] KVM: selftests: Add IPI handling support for Secure AVIC Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 22/31] KVM: selftests: Add args param to kvm_arch_vm_post_create() Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 23/31] KVM: selftests: Add SAVIC GPA notification GHCB call Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 24/31] KVM: selftests: Add Secure AVIC mode to xapic_ipi_test Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 25/31] KVM: selftests: Add Secure AVIC APIC regs test Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 26/31] KVM: selftests: Add test to verify APIC MSR accesses for SAVIC guest Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 27/31] KVM: selftests: Extend savic test with idle halt testing Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 28/31] KVM: selftests: Add IOAPIC tests for Secure AVIC Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 29/31] KVM: selftests: Add cross-vCPU IPI testing for SAVIC guests Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 30/31] KVM: selftests: Add NMI test " Neeraj Upadhyay
2025-02-28  9:30 ` [RFC PATCH 31/31] KVM: selftests: Add MSI injection test for SAVIC Neeraj Upadhyay

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=20250228093024.114983-12-Neeraj.Upadhyay@amd.com \
    --to=neeraj.upadhyay@amd.com \
    --cc=David.Kaplan@amd.com \
    --cc=Santosh.Shukla@amd.com \
    --cc=Suravee.Suthikulpanit@amd.com \
    --cc=Thomas.Lendacky@amd.com \
    --cc=Vasant.Hegde@amd.com \
    --cc=bp@alien8.de \
    --cc=huibo.wang@amd.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-kselftest@vger.kernel.org \
    --cc=naveen.rao@amd.com \
    --cc=nikunj@amd.com \
    --cc=pbonzini@redhat.com \
    --cc=pgonda@google.com \
    --cc=seanjc@google.com \
    --cc=shuah@kernel.org \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®