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From: Ihor Solodrai To: Borislav Petkov , Dave Hansen , Ingo Molnar , Thomas Gleixner Cc: Alexei Starovoitov , Andrii Nakryiko , Andrey Ryabinin , Andrew Morton , "H . Peter Anvin" , Andrey Konovalov , bpf@vger.kernel.org, kernel-team@meta.com, kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20260704002046.3859585-1-ihor.solodrai@linux.dev> Content-Language: en-US In-Reply-To: <20260704002046.3859585-1-ihor.solodrai@linux.dev> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 444C31C000F X-Stat-Signature: tt7rs6qjm4f3o3jkisrd181fp8omj58w X-HE-Tag: 1784654653-399989 X-HE-Meta: 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 ErR4RGH2 9Y7zAtcih9knkiDfvwKuFB2lbVE86lsinreh6o5lTir2NLTttPPvpPr2Lp4lXB/8ntSG27JK2LiBptp8VE6C6c6hg2LEhX0bO1ixYgWLFuVVK6ouMrpLMeTFom0ewmr6bUYSg+8HJg7RX8ONMvRlaBbyomsfpTerOOuXxHYjispXEMb87Pbi8J5D6O5juebi2hTfzXmgAJCGosFQMwyGtqU6iPIfMqIWT8BnLoSxwzDDlHmIkI0UMCOXsTVY51yrVbr92Fw1OtCxW8m0peL4rv8zBModijPgjeV0KmAndREk+FVEGXMfEyScJdqa7UqB8NTaFXX3SbDwuDduhz7gG0SIn/rbOWT9yt4oNKKdd6MvU6AQ= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 7/3/26 5:20 PM, Ihor Solodrai wrote: > This series refactors identify_cpu() machinery on x86 and then > implements a fix for a bug when cpu capabilities are temporarily > cleared within an interruptable window. For more details and > discussion see the relevant bug report [1]. > > Suggested-by: Borislav Petkov > Signed-off-by: Ihor Solodrai > > [1] https://lore.kernel.org/bpf/20260610175651.647515-1-ihor.solodrai@linux.dev/ > > Ihor Solodrai (5): > x86/cpu: Factor init_cpu_info() out of identify_cpu() > x86/cpu: Inline generic_identify() into identify_cpu() > x86/cpu: Introduce identify_cpu_32() helper > x86/cpu: Set X86_BUG_ESPFIX in identify_cpu_32() > x86/cpu: Don't reset boot CPU cpuinfo in identify_cpu() Hi Boris, everyone. Bumping the thread as it's been a couple of weeks. Please take a look when you get a chance. Thanks! > > arch/x86/kernel/cpu/common.c | 114 +++++++++++++++++++---------------- > 1 file changed, 61 insertions(+), 53 deletions(-) >