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[46.102.197.194]) by smtp.gmail.com with ESMTPSA id xi8-20020a170906dac800b00a46af0fbe83sm3335059ejb.76.2024.03.19.07.48.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Mar 2024 07:48:06 -0700 (PDT) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: b3598bfe-e5ff-11ee-afdd-a90da7624cb6 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=citrix.com; s=google; t=1710859686; x=1711464486; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Eaw7etip514ivjOH3GhsXOD2/5lNzqfhjxpPNlIaVtY=; b=Z30m6RQoRuYn1d6NjJl23Xvx++bBlWtCpSfy2XgcdJsaCSBENWKU6wkeyVNLkWCPED X+gaF9a/e5ZncozNy4QOMt51dpQDC7rqmvVTKORmJO/TFEoICmr+/qALTQa9bzf8kWeJ grtcfWQGlIwPFB/pjFoemHiOuCDU2MY8QUuC4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710859686; x=1711464486; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Eaw7etip514ivjOH3GhsXOD2/5lNzqfhjxpPNlIaVtY=; b=d+Cy6g6suiU5ikSSdx9nyxnUVqfE5sUc3bzHyR7xxqFz/iEgn8lEpNyORFUQ+K8aJG GmTqevwa1rLlBthlC2xo2c4E/CWDUBgIx51qbXDfPTswju3pLU1czAbVZWBDsUo0+Wi3 1F/AJjvQB09IMHl+gc4rGuF23BaeVj2oLlgEnvltc/WiQESqaDhExYTU0nuqwmakrVZ6 7psPP3Uulh75lqEilg0B4QXGl+uGglBtBg1iqYqGWTMANSMRQB6/0MghZ+Zt6XCJA6OT /U11uBY/MDMMuq/TzuMAJs4VD8LRhPegWhG0uFUa8DNtPST0wXqO5Q0NR+K52nhs5Ajf csag== X-Gm-Message-State: AOJu0Yy2APYuwgKw9jH6itsWXXM8DPy0j4oqEHrjYVJM3vyXHBiwpOz8 jf9cHJb7jF9LYjKPiXb5kSVf2+o9sUYDJI5pFGw1GCO2XrhJGTfIYbmi9HSAE6t66zaPYsTtlnc t X-Google-Smtp-Source: AGHT+IFSwPYDc0ZA0xloOcC4DmRiqr+2k2oSPeyuavUrZ8xRya4nQ0h+DcfqTzDeEeb5R85aZ6DvEw== X-Received: by 2002:ac2:5e9d:0:b0:513:cb89:82c1 with SMTP id b29-20020ac25e9d000000b00513cb8982c1mr7959551lfq.43.1710859686557; Tue, 19 Mar 2024 07:48:06 -0700 (PDT) From: Andrew Cooper To: Xen-devel Cc: Andrew Cooper , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Subject: [PATCH 2/2] x86/boot: Support the watchdog on newer AMD systems Date: Tue, 19 Mar 2024 14:48:02 +0000 Message-Id: <20240319144802.3894710-3-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20240319144802.3894710-1-andrew.cooper3@citrix.com> References: <20240319144802.3894710-1-andrew.cooper3@citrix.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1710859704727100001 The MSRs used by setup_k7_watchdog() are architectural in 64bit. The Unit Select (0x76, cycles not in halt state) isn't, but it hasn't changed in 23 years, making this a trend likely to continue. Drop the family check. If the Unit Select does happen to change meaning in the future, check_nmi_watchdog() will still notice the watchdog not operati= ng as expected. Signed-off-by: Andrew Cooper Reviewed-by: Jan Beulich --- CC: Jan Beulich CC: Roger Pau Monn=C3=A9 --- xen/arch/x86/nmi.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/xen/arch/x86/nmi.c b/xen/arch/x86/nmi.c index 33f77a92047f..f6329cb0270e 100644 --- a/xen/arch/x86/nmi.c +++ b/xen/arch/x86/nmi.c @@ -387,15 +387,12 @@ void setup_apic_nmi_watchdog(void) if ( nmi_watchdog =3D=3D NMI_NONE ) return; =20 - switch (boot_cpu_data.x86_vendor) { + switch ( boot_cpu_data.x86_vendor ) + { case X86_VENDOR_AMD: - switch (boot_cpu_data.x86) { - case 6: - case 0xf ... 0x19: - setup_k7_watchdog(); - break; - } + setup_k7_watchdog(); break; + case X86_VENDOR_INTEL: switch (boot_cpu_data.x86) { case 6: --=20 2.30.2