From: Anirudh Rayabharam <anrayabh@linux.microsoft.com>
To: kys@microsoft.com, haiyangz@microsoft.com,
sthemmin@microsoft.com, wei.liu@kernel.org, decui@microsoft.com,
tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
daniel.lezcano@linaro.org, Arnd Bergmann <arnd@arndb.de>,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org
Cc: stanislav.kinsburskiy@gmail.com,
Anirudh Rayabharam <anrayabh@linux.microsoft.com>,
kumarpraveen@linux.microsoft.com, mail@anirudhrb.com
Subject: [PATCH v2 0/2] Fix MSR access errors during kexec in root partition
Date: Thu, 27 Oct 2022 15:27:27 +0530 [thread overview]
Message-ID: <20221027095729.1676394-1-anrayabh@linux.microsoft.com> (raw)
Fixes a couple of MSR access errors seen during kexec in root partition
and opportunistically introduces a data structure for the reference TSC
MSR in order to simplify the code that updates that MSR.
New in v2:
1. Reverse the patch order as suggested by Michael. First introduce the
new structure for reference tsc MSR and then use it in the hv_cleanup
fix.
2. Use hv_{get,set}_register functions in hv_cleanup().
Anirudh Rayabharam (2):
clocksource/drivers/hyperv: add data structure for reference TSC MSR
x86/hyperv: fix invalid writes to MSRs during root partition kexec
arch/x86/hyperv/hv_init.c | 11 +++++++----
drivers/clocksource/hyperv_timer.c | 28 ++++++++++++++--------------
include/asm-generic/hyperv-tlfs.h | 9 +++++++++
3 files changed, 30 insertions(+), 18 deletions(-)
--
2.34.1
next reply other threads:[~2022-10-27 9:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-27 9:57 Anirudh Rayabharam [this message]
2022-10-27 9:57 ` [PATCH v2 1/2] clocksource/drivers/hyperv: add data structure for reference TSC MSR Anirudh Rayabharam
2022-10-27 13:42 ` Michael Kelley (LINUX)
2022-11-02 20:33 ` Michael Kelley (LINUX)
2022-11-03 14:24 ` Wei Liu
2022-11-03 15:30 ` Anirudh Rayabharam
2022-10-27 9:57 ` [PATCH v2 2/2] x86/hyperv: fix invalid writes to MSRs during root partition kexec Anirudh Rayabharam
2022-10-27 13:44 ` Michael Kelley (LINUX)
2022-10-27 19:16 ` Wei Liu
2022-10-28 12:34 ` Anirudh Rayabharam
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