From: Oliver Upton <oliver.upton@linux.dev>
To: Reiji Watanabe <reijiw@google.com>
Cc: kvm@vger.kernel.org, Marc Zyngier <maz@kernel.org>,
Andrew Jones <andrew.jones@linux.dev>,
Paolo Bonzini <pbonzini@redhat.com>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 3/9] KVM: arm64: selftests: Remove the hard-coded {b,w}pn#0 from debug-exceptions
Date: Thu, 25 Aug 2022 09:55:31 -0700 [thread overview]
Message-ID: <Ywepg6c4FT7DvJ83@google.com> (raw)
In-Reply-To: <20220825050846.3418868-4-reijiw@google.com>
On Wed, Aug 24, 2022 at 10:08:40PM -0700, Reiji Watanabe wrote:
> Remove the hard-coded {break,watch}point #0 from the guest_code()
> in debug-exceptions to allow {break,watch}point number to be
> specified. Subsequent patches will add test cases for non-zero
> {break,watch}points.
Also worth mentioning that you're opportunistically zeroing the debug
registers as their values are UNKNOWN out of reset.
--
Thanks,
Oliver
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WARNING: multiple messages have this Message-ID (diff)
From: Oliver Upton <oliver.upton@linux.dev>
To: Reiji Watanabe <reijiw@google.com>
Cc: Marc Zyngier <maz@kernel.org>,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
Andrew Jones <andrew.jones@linux.dev>,
Paolo Bonzini <pbonzini@redhat.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 3/9] KVM: arm64: selftests: Remove the hard-coded {b,w}pn#0 from debug-exceptions
Date: Thu, 25 Aug 2022 09:55:31 -0700 [thread overview]
Message-ID: <Ywepg6c4FT7DvJ83@google.com> (raw)
In-Reply-To: <20220825050846.3418868-4-reijiw@google.com>
On Wed, Aug 24, 2022 at 10:08:40PM -0700, Reiji Watanabe wrote:
> Remove the hard-coded {break,watch}point #0 from the guest_code()
> in debug-exceptions to allow {break,watch}point number to be
> specified. Subsequent patches will add test cases for non-zero
> {break,watch}points.
Also worth mentioning that you're opportunistically zeroing the debug
registers as their values are UNKNOWN out of reset.
--
Thanks,
Oliver
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Oliver Upton <oliver.upton@linux.dev>
To: Reiji Watanabe <reijiw@google.com>
Cc: Marc Zyngier <maz@kernel.org>,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
Andrew Jones <andrew.jones@linux.dev>,
Paolo Bonzini <pbonzini@redhat.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 3/9] KVM: arm64: selftests: Remove the hard-coded {b,w}pn#0 from debug-exceptions
Date: Thu, 25 Aug 2022 09:55:31 -0700 [thread overview]
Message-ID: <Ywepg6c4FT7DvJ83@google.com> (raw)
In-Reply-To: <20220825050846.3418868-4-reijiw@google.com>
On Wed, Aug 24, 2022 at 10:08:40PM -0700, Reiji Watanabe wrote:
> Remove the hard-coded {break,watch}point #0 from the guest_code()
> in debug-exceptions to allow {break,watch}point number to be
> specified. Subsequent patches will add test cases for non-zero
> {break,watch}points.
Also worth mentioning that you're opportunistically zeroing the debug
registers as their values are UNKNOWN out of reset.
--
Thanks,
Oliver
next prev parent reply other threads:[~2022-08-25 16:55 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-25 5:08 [PATCH 0/9] KVM: arm64: selftests: Test linked {break,watch}points Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` [PATCH 1/9] KVM: arm64: selftests: Add helpers to extract a field of an ID register Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 16:48 ` Oliver Upton
2022-08-25 16:48 ` Oliver Upton
2022-08-25 16:48 ` Oliver Upton
2022-08-25 16:52 ` Ricardo Koller
2022-08-25 16:52 ` Ricardo Koller
2022-08-25 16:52 ` Ricardo Koller
2022-08-25 16:58 ` Oliver Upton
2022-08-25 16:58 ` Oliver Upton
2022-08-25 16:58 ` Oliver Upton
2022-08-26 0:50 ` Reiji Watanabe
2022-08-26 0:50 ` Reiji Watanabe
2022-08-26 0:50 ` Reiji Watanabe
2022-08-25 5:08 ` [PATCH 2/9] KVM: arm64: selftests: Add write_dbg{b,w}{c,v}r helpers in debug-exceptions Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-09-09 19:40 ` Ricardo Koller
2022-09-09 19:40 ` Ricardo Koller
2022-09-09 19:40 ` Ricardo Koller
2022-08-25 5:08 ` [PATCH 3/9] KVM: arm64: selftests: Remove the hard-coded {b,w}pn#0 from debug-exceptions Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 16:55 ` Oliver Upton [this message]
2022-08-25 16:55 ` Oliver Upton
2022-08-25 16:55 ` Oliver Upton
2022-08-26 0:53 ` Reiji Watanabe
2022-08-26 0:53 ` Reiji Watanabe
2022-08-26 0:53 ` Reiji Watanabe
2022-09-09 19:46 ` Ricardo Koller
2022-09-09 19:46 ` Ricardo Koller
2022-09-09 19:46 ` Ricardo Koller
2022-09-10 4:15 ` Reiji Watanabe
2022-09-10 4:15 ` Reiji Watanabe
2022-09-10 4:15 ` Reiji Watanabe
2022-08-25 5:08 ` [PATCH 4/9] KVM: arm64: selftests: Add helpers to enable debug exceptions Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 17:21 ` Oliver Upton
2022-08-25 17:21 ` Oliver Upton
2022-08-25 17:21 ` Oliver Upton
2022-08-26 0:55 ` Reiji Watanabe
2022-08-26 0:55 ` Reiji Watanabe
2022-08-26 0:55 ` Reiji Watanabe
2022-09-09 19:57 ` Ricardo Koller
2022-09-09 19:57 ` Ricardo Koller
2022-09-09 19:57 ` Ricardo Koller
2022-08-25 5:08 ` [PATCH 5/9] KVM: arm64: selftests: Have debug_version() use cpuid_get_ufield() helper Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 17:29 ` Oliver Upton
2022-08-25 17:29 ` Oliver Upton
2022-08-25 17:29 ` Oliver Upton
2022-08-26 0:59 ` Reiji Watanabe
2022-08-26 0:59 ` Reiji Watanabe
2022-08-26 0:59 ` Reiji Watanabe
2022-08-25 5:08 ` [PATCH 6/9] KVM: arm64: selftests: Change debug_version() to take ID_AA64DFR0_EL1 Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` [PATCH 7/9] KVM: arm64: selftests: Add a test case for a linked breakpoint Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-26 1:29 ` Reiji Watanabe
2022-08-26 1:29 ` Reiji Watanabe
2022-08-26 1:29 ` Reiji Watanabe
2022-09-09 20:18 ` Ricardo Koller
2022-09-09 20:18 ` Ricardo Koller
2022-09-09 20:18 ` Ricardo Koller
2022-09-09 20:26 ` Ricardo Koller
2022-09-09 20:26 ` Ricardo Koller
2022-09-09 20:26 ` Ricardo Koller
2022-09-10 5:22 ` Reiji Watanabe
2022-09-10 5:22 ` Reiji Watanabe
2022-09-10 5:22 ` Reiji Watanabe
2022-09-09 21:01 ` Ricardo Koller
2022-09-09 21:01 ` Ricardo Koller
2022-09-09 21:01 ` Ricardo Koller
2022-09-10 5:19 ` Reiji Watanabe
2022-09-10 5:19 ` Reiji Watanabe
2022-09-10 5:19 ` Reiji Watanabe
2022-08-25 5:08 ` [PATCH 8/9] KVM: arm64: selftests: Add a test case for a linked watchpoint Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` [PATCH 9/9] KVM: arm64: selftests: Test with every breakpoint/watchpoint Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
2022-08-25 5:08 ` Reiji Watanabe
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