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X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Dylanger Daly , Andrew Cooper , Jan Beulich , xen-devel@lists.xen.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-ZohoMail-DKIM: fail (found 2 invalid signatures) Giving Laptop Users the ability to Undervolt and change Temp Throttle Limit= s. Signed-off-by: Dylanger Daly --- xen/arch/x86/traps.c | 8 ++++++++ xen/include/asm-x86/msr-index.h | 2 ++ 2 files changed, 10 insertions(+) diff --git a/xen/arch/x86/traps.c b/xen/arch/x86/traps.c index 1a22895907..475a2a5720 100644 --- a/xen/arch/x86/traps.c +++ b/xen/arch/x86/traps.c @@ -2684,6 +2684,14 @@ static int priv_op_write_msr(unsigned int reg, uint6= 4_t val, goto invalid; return X86EMUL_OKAY; =20 + case MSR_IA32_VOLTAGE_OFFSET: + case MSR_IA32_TEMP_CONTROL: + if ( boot_cpu_data.x86_vendor !=3D X86_VENDOR_INTEL ) + break; + if ( wrmsr_safe(reg, val) =3D=3D 0 ) + return X86EMUL_OKAY; + break; + case MSR_IA32_MISC_ENABLE: if ( rdmsr_safe(reg, temp) ) break; diff --git a/xen/include/asm-x86/msr-index.h b/xen/include/asm-x86/msr-inde= x.h index 7bb382f456..75dad3fe43 100644 --- a/xen/include/asm-x86/msr-index.h +++ b/xen/include/asm-x86/msr-index.h @@ -346,6 +346,8 @@ #define MSR_IA32_THERM_INTERRUPT 0x0000019b #define MSR_IA32_THERM_STATUS 0x0000019c #define MSR_IA32_MISC_ENABLE 0x000001a0 +#define MSR_IA32_VOLTAGE_OFFSET 0x00000150 +#define MSR_IA32_TEMP_CONTROL 0x000001a2 #define MSR_IA32_MISC_ENABLE_PERF_AVAIL (1<<7) #define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL (1<<11) #define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL (1<<12) --=20 2.20.1 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel