All of lore.kernel.org
 help / color / mirror / Atom feed
From: Marc Zyngier <maz@kernel.org>
To: Zenghui Yu <yuzenghui@huawei.com>
Cc: <kvmarm@lists.linux.dev>, <linux-arm-kernel@lists.infradead.org>,
	<oliver.upton@linux.dev>, <james.morse@arm.com>,
	<suzuki.poulose@arm.com>, <ricarkol@google.com>,
	<wanghaibin.wang@huawei.com>
Subject: Re: [PATCH 1/2] KVM: arm64: selftest: Add the missing .guest_prepare()
Date: Sat, 07 Oct 2023 17:05:05 +0100	[thread overview]
Message-ID: <877cnymn9q.wl-maz@kernel.org> (raw)
In-Reply-To: <20231007124043.626-1-yuzenghui@huawei.com>

On Sat, 07 Oct 2023 13:40:42 +0100,
Zenghui Yu <yuzenghui@huawei.com> wrote:
> 
> Running page_fault_test on a Cortex A72 fails with
> 
> Test: ro_memslot_no_syndrome_guest_cas
> Testing guest mode: PA-bits:40,  VA-bits:48,  4K pages
> Testing memory backing src type: anonymous
> ==== Test Assertion Failure ====
>   aarch64/page_fault_test.c:117: guest_check_lse()
>   pid=1944087 tid=1944087 errno=4 - Interrupted system call
>      1	0x00000000004028b3: vcpu_run_loop at page_fault_test.c:682
>      2	0x0000000000402d93: run_test at page_fault_test.c:731
>      3	0x0000000000403957: for_each_guest_mode at guest_modes.c:100
>      4	0x00000000004019f3: for_each_test_and_guest_mode at page_fault_test.c:1108
>      5	 (inlined by) main at page_fault_test.c:1134
>      6	0x0000ffff868e503b: ?? ??:0
>      7	0x0000ffff868e5113: ?? ??:0
>      8	0x0000000000401aaf: _start at ??:?
>   guest_check_lse()
> 
> because we don't have a guest_prepare stage to check the presence of
> FEAT_LSE and skip the related guest_cas testing, and we end-up failing in
> GUEST_ASSERT(guest_check_lse()).
> 
> Add the missing .guest_prepare() where it's indeed required.
> 
> Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>

Acked-by: Marc Zyngier <maz@kernel.org>

	M.

-- 
Without deviation from the norm, progress is not possible.

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Zenghui Yu <yuzenghui@huawei.com>
Cc: <kvmarm@lists.linux.dev>, <linux-arm-kernel@lists.infradead.org>,
	<oliver.upton@linux.dev>, <james.morse@arm.com>,
	<suzuki.poulose@arm.com>, <ricarkol@google.com>,
	<wanghaibin.wang@huawei.com>
Subject: Re: [PATCH 1/2] KVM: arm64: selftest: Add the missing .guest_prepare()
Date: Sat, 07 Oct 2023 17:05:05 +0100	[thread overview]
Message-ID: <877cnymn9q.wl-maz@kernel.org> (raw)
In-Reply-To: <20231007124043.626-1-yuzenghui@huawei.com>

On Sat, 07 Oct 2023 13:40:42 +0100,
Zenghui Yu <yuzenghui@huawei.com> wrote:
> 
> Running page_fault_test on a Cortex A72 fails with
> 
> Test: ro_memslot_no_syndrome_guest_cas
> Testing guest mode: PA-bits:40,  VA-bits:48,  4K pages
> Testing memory backing src type: anonymous
> ==== Test Assertion Failure ====
>   aarch64/page_fault_test.c:117: guest_check_lse()
>   pid=1944087 tid=1944087 errno=4 - Interrupted system call
>      1	0x00000000004028b3: vcpu_run_loop at page_fault_test.c:682
>      2	0x0000000000402d93: run_test at page_fault_test.c:731
>      3	0x0000000000403957: for_each_guest_mode at guest_modes.c:100
>      4	0x00000000004019f3: for_each_test_and_guest_mode at page_fault_test.c:1108
>      5	 (inlined by) main at page_fault_test.c:1134
>      6	0x0000ffff868e503b: ?? ??:0
>      7	0x0000ffff868e5113: ?? ??:0
>      8	0x0000000000401aaf: _start at ??:?
>   guest_check_lse()
> 
> because we don't have a guest_prepare stage to check the presence of
> FEAT_LSE and skip the related guest_cas testing, and we end-up failing in
> GUEST_ASSERT(guest_check_lse()).
> 
> Add the missing .guest_prepare() where it's indeed required.
> 
> Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>

Acked-by: Marc Zyngier <maz@kernel.org>

	M.

-- 
Without deviation from the norm, progress is not possible.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2023-10-07 16:05 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-07 12:40 [PATCH 1/2] KVM: arm64: selftest: Add the missing .guest_prepare() Zenghui Yu
2023-10-07 12:40 ` Zenghui Yu
2023-10-07 12:40 ` [PATCH 2/2] KVM: arm64: selftest: Perform ISB before reading PAR_EL1 Zenghui Yu
2023-10-07 12:40   ` Zenghui Yu
2023-10-07 16:06   ` Marc Zyngier
2023-10-07 16:06     ` Marc Zyngier
2023-10-07 16:05 ` Marc Zyngier [this message]
2023-10-07 16:05   ` [PATCH 1/2] KVM: arm64: selftest: Add the missing .guest_prepare() Marc Zyngier
2023-10-07 16:50 ` Oliver Upton
2023-10-07 16:50   ` Oliver Upton

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=877cnymn9q.wl-maz@kernel.org \
    --to=maz@kernel.org \
    --cc=james.morse@arm.com \
    --cc=kvmarm@lists.linux.dev \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=oliver.upton@linux.dev \
    --cc=ricarkol@google.com \
    --cc=suzuki.poulose@arm.com \
    --cc=wanghaibin.wang@huawei.com \
    --cc=yuzenghui@huawei.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.