From: Rik van Riel <riel@surriel.com>
To: linux-kernel@vger.kernel.org
Cc: kernel-team@meta.com, dave.hansen@linux.intel.com,
luto@kernel.org, peterz@infradead.org, bp@alien8.de,
x86@kernel.org, nadav.amit@gmail.com, seanjc@google.com,
tglx@linutronix.de, mingo@kernel.org
Subject: [PATCH v2 0/3] x86/mm: TLB flush fixes
Date: Fri, 6 Jun 2025 13:10:32 -0400 [thread overview]
Message-ID: <20250606171112.4013261-1-riel@surriel.com> (raw)
1) Fix a potential overflow in user_pcid_flush_mask.
I do not think anybody is hitting this in practice,
but they could if they wanted to.
2) Change the early boot initialized value of invlpgb_count_max
to 1, to avoid an infinite loop when...
3) Having cpa_flush() call flush_kernel_range(), which results
in the INVPLGB code being called very early at boot time.
v2:
- changelog improvements (Dave Hansen)
- get rid of #ifdefs in .c files (Dave Hansen)
next reply other threads:[~2025-06-06 17:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-06 17:10 Rik van Riel [this message]
2025-06-06 17:10 ` [PATCH v2 1/3] x86/mm: Fix potential overflow in user_pcid_flush_mask Rik van Riel
2025-06-06 18:50 ` Dave Hansen
2025-06-06 17:10 ` [PATCH v2 2/3] x86/mm: Fix early boot use of INVPLGB Rik van Riel
2025-06-06 17:10 ` [PATCH v2 3/3] x86/mm: Change cpa_flush() to call flush_kernel_range() directly Rik van Riel
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