From: Mingwei Zhang <mizhang@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
linux-kselftest@vger.kernel.org,
Mingwei Zhang <mizhang@google.com>,
Jim Mattson <jmattson@google.com>,
Venkatesh Srinivas <venkateshs@google.com>,
Aaron Lewis <aaronlewis@google.com>,
"Chang S. Bae" <chang.seok.bae@intel.com>,
Chao Gao <chao.gao@intel.com>
Subject: [PATCH v3 06/13] KVM: selftests: x86: Add the XFD check to IA32_XFD in #NM handler
Date: Tue, 21 Feb 2023 16:36:48 +0000 [thread overview]
Message-ID: <20230221163655.920289-7-mizhang@google.com> (raw)
In-Reply-To: <20230221163655.920289-1-mizhang@google.com>
Add an extra check to IA32_XFD to ensure the behavior is consistent with
the AMX archtecture. In addition, repeat the checks across context switch
to ensure the values of IA32_XFD and IA32_XFD_ERR are well preserved.
Signed-off-by: Mingwei Zhang <mizhang@google.com>
---
tools/testing/selftests/kvm/x86_64/amx_test.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/testing/selftests/kvm/x86_64/amx_test.c b/tools/testing/selftests/kvm/x86_64/amx_test.c
index ac49b14460b6..296c954dfd6d 100644
--- a/tools/testing/selftests/kvm/x86_64/amx_test.c
+++ b/tools/testing/selftests/kvm/x86_64/amx_test.c
@@ -218,8 +218,10 @@ void guest_nm_handler(struct ex_regs *regs)
GUEST_SYNC(7);
GUEST_ASSERT((get_cr0() & X86_CR0_TS) == 0);
GUEST_ASSERT(rdmsr(MSR_IA32_XFD_ERR) == XFEATURE_MASK_XTILEDATA);
+ GUEST_ASSERT(rdmsr(MSR_IA32_XFD) & XFEATURE_MASK_XTILEDATA);
GUEST_SYNC(8);
GUEST_ASSERT(rdmsr(MSR_IA32_XFD_ERR) == XFEATURE_MASK_XTILEDATA);
+ GUEST_ASSERT(rdmsr(MSR_IA32_XFD) & XFEATURE_MASK_XTILEDATA);
/* Clear xfd_err */
wrmsr(MSR_IA32_XFD_ERR, 0);
/* xfd=0, enable amx */
--
2.39.2.637.g21b0678d19-goog
next prev parent reply other threads:[~2023-02-21 16:37 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-21 16:36 [PATCH v3 00/13] Overhauling amx_test Mingwei Zhang
2023-02-21 16:36 ` [PATCH v3 01/13] x86/fpu/xstate: Avoid getting xstate address of init_fpstate if fpstate contains the component Mingwei Zhang
2023-02-21 20:54 ` Thomas Gleixner
2023-02-22 3:05 ` Chang S. Bae
2023-02-22 8:38 ` Thomas Gleixner
2023-02-22 18:40 ` Mingwei Zhang
2023-02-22 22:13 ` Chang S. Bae
2023-02-24 23:56 ` Mingwei Zhang
2023-02-25 0:47 ` Chang S. Bae
2023-02-25 1:09 ` Mingwei Zhang
2023-02-25 1:39 ` Chang S. Bae
2023-02-21 16:36 ` [PATCH v3 02/13] KVM: selftests: x86: Add a working xstate data structure Mingwei Zhang
2023-03-24 20:36 ` Sean Christopherson
2023-02-21 16:36 ` [PATCH v3 03/13] KVM: selftests: x86: Fix an error in comment of amx_test Mingwei Zhang
2023-02-21 16:36 ` [PATCH v3 04/13] KVM: selftests: x86: Enable checking on xcomp_bv in amx_test Mingwei Zhang
2023-02-21 16:36 ` [PATCH v3 05/13] KVM: selftests: x86: Add check of CR0.TS in the #NM handler " Mingwei Zhang
2023-03-24 20:38 ` Sean Christopherson
2023-02-21 16:36 ` Mingwei Zhang [this message]
2023-03-24 20:39 ` [PATCH v3 06/13] KVM: selftests: x86: Add the XFD check to IA32_XFD in #NM handler Sean Christopherson
2023-02-21 16:36 ` [PATCH v3 07/13] KVM: selftests: x86: Fix the checks to XFD_ERR using and operation Mingwei Zhang
2023-03-24 20:41 ` Sean Christopherson
2023-02-21 16:36 ` [PATCH v3 08/13] KVM: selftests: x86: Repeat the checking of xheader when IA32_XFD[XTILEDATA] is set in amx_test Mingwei Zhang
2023-02-21 16:36 ` [PATCH v3 09/13] KVM: selftests: x86: Assert that XTILE is XSAVE-enabled Mingwei Zhang
2023-02-21 16:36 ` [PATCH v3 10/13] KVM: selftests: x86: Assert that both XTILE{CFG,DATA} are XSAVE-enabled Mingwei Zhang
2023-02-21 16:36 ` [PATCH v3 11/13] KVM: selftests: x86: Remove redundant check that XSAVE is supported Mingwei Zhang
2023-03-24 20:43 ` Sean Christopherson
2023-02-21 16:36 ` [PATCH v3 12/13] KVM: selftests: x86: Check that the palette table exists before using it Mingwei Zhang
2023-02-21 16:36 ` [PATCH v3 13/13] KVM: selftests: x86: Check that XTILEDATA supports XFD Mingwei Zhang
2023-03-24 20:58 ` [PATCH v3 00/13] Overhauling amx_test Sean Christopherson
2023-03-24 21:01 ` Sean Christopherson
2023-03-24 21:30 ` Sean Christopherson
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=20230221163655.920289-7-mizhang@google.com \
--to=mizhang@google.com \
--cc=aaronlewis@google.com \
--cc=chang.seok.bae@intel.com \
--cc=chao.gao@intel.com \
--cc=hpa@zytor.com \
--cc=jmattson@google.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=seanjc@google.com \
--cc=tglx@linutronix.de \
--cc=venkateshs@google.com \
/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;
as well as URLs for NNTP newsgroup(s).