From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AB8JxZry3E28O+lPsaPV6mAwIrSiVUeHsaqnyeyCTULfl+bc68a0FS//9FjsO9eKGqJfmgjVWR8o ARC-Seal: i=1; a=rsa-sha256; t=1526937603; cv=none; d=google.com; s=arc-20160816; b=0eYVDv5AbI7u1/cVFgNnfEByX64+Ga+9AJaN7mGt54rjFMtO1HL/fOwPzXBZwbK0CL tg1YpjUfXZRi3X5TgRq79k++8YMpVdtRO3i4MD1IHHS45vHIB+x2ZpWxhKH3Ew1JDyRw 5MoVuHa6NjCC+OXM2+X7rk8SuIwZBqo1ClJqfw34B32ARUBPIHpxh5Jteo4m+QdP93qK WsXZuREdGdD1Q5La2a2C+1cjNKAQ35YQV/Eokh8eOC51eFqvp5xtTSVugiF6GRxMIs/r YJnv6Mk6bQNLiEbA3wCvqzlS/vue02XnW6Rr6CdXLjwgXwvspJ6y3N+t/qBUpudI6iJH UhdA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:dkim-signature:arc-authentication-results; bh=MtoXRfmMEo973Tfd5OU8OAUF2dAZfSzyqEvzACeW7PI=; b=JGFCGKTn5ECBC5puw8jylruvClVIOLMjVDxtPvgJFQ4sl+o2jFcx0f6n8kDBWm217v u5bfMAoL92Nsc/TTwoy+Ek5xNKc4FhM57IQBm971QOk6UTbsMKKYdqMQgK0vni0gaK42 ER/fdMYkfzY3CIav2wf2pxoYGqzpaApK251CJYdQd7QvB/67hvjTsiJ3V0q6/iXFO+k/ a3S/pFLyYQz9V8SoeEVqXxdoaDCRT5MXvh6/GrL0YtS3iI8lN2Xzkydq/RyYDhhipyKH KEvzBdtea+MwLB/4nus5RLcWK4QlIW+2sBaPwLl7BVyEoAhHsVxASPxMqGaZ7d9hUc0i qNuw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=SsqQxwk8; spf=pass (google.com: domain of srs0=nia/=ii=linuxfoundation.org=gregkh@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=SRS0=nia/=II=linuxfoundation.org=gregkh@kernel.org Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=SsqQxwk8; spf=pass (google.com: domain of srs0=nia/=ii=linuxfoundation.org=gregkh@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=SRS0=nia/=II=linuxfoundation.org=gregkh@kernel.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Konrad Rzeszutek Wilk , Thomas Gleixner , Ingo Molnar Subject: [PATCH 4.14 54/95] x86/cpufeatures: Add X86_FEATURE_RDS Date: Mon, 21 May 2018 23:11:44 +0200 Message-Id: <20180521210458.290436491@linuxfoundation.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180521210447.219380974@linuxfoundation.org> References: <20180521210447.219380974@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1601109838920846580?= X-GMAIL-MSGID: =?utf-8?q?1601110125004671687?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Konrad Rzeszutek Wilk commit 0cc5fa00b0a88dad140b4e5c2cead9951ad36822 upstream Add the CPU feature bit CPUID.7.0.EDX[31] which indicates whether the CPU supports Reduced Data Speculation. [ tglx: Split it out from a later patch ] Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Thomas Gleixner Reviewed-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- arch/x86/include/asm/cpufeatures.h | 1 + 1 file changed, 1 insertion(+) --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -331,6 +331,7 @@ #define X86_FEATURE_SPEC_CTRL (18*32+26) /* "" Speculation Control (IBRS + IBPB) */ #define X86_FEATURE_INTEL_STIBP (18*32+27) /* "" Single Thread Indirect Branch Predictors */ #define X86_FEATURE_ARCH_CAPABILITIES (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */ +#define X86_FEATURE_RDS (18*32+31) /* Reduced Data Speculation */ /* * BUG word(s)