search for: efer

Is it intentional that - under SVM, 32-bit guests can freely set EFER.LME - under VMX, 32-bit guests can''t access EFER at all? Thanks, Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

....000000000 +0200 +++ 2007-08-08/xen/arch/x86/hvm/svm/svm.c 2007-08-08 11:43:53.000000000 +0200 @@ -68,6 +68,11 @@ static void *hsa[NR_CPUS] __read_mostly; /* vmcb used for extended host state */ static void *root_vmcb[NR_CPUS] __read_mostly; +#ifdef __x86_64__ +/* indicate whether guest may use EFER.LMSLE */ +static unsigned char cpu_has_lmsl = 1; +#endif + /* SVM feature flags */ u32 svm_feature_flags; @@ -190,7 +195,10 @@ static enum handler_return long_mode_do_ case MSR_EFER: /* Offending reserved bit will cause #GP. */ #ifdef __x86_64__ - if ( (msr_content & ~...

.... Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Andre Przywara <andre.przywara@amd.com> --- 2010-05-04.orig/xen/arch/x86/hvm/hvm.c 2010-04-22 14:43:25.000000000 +0200 +++ 2010-05-04/xen/arch/x86/hvm/hvm.c 2010-05-04 13:26:07.000000000 +0200 @@ -590,6 +590,7 @@ static bool_t hvm_efer_valid(uint64_t va ((sizeof(long) != 8) && (value & EFER_LME)) || (!cpu_has_nx && (value & EFER_NX)) || (!cpu_has_syscall && (value & EFER_SCE)) || + (!cpu_has_lmsl && (value & EFER_LMSLE)) ||...

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> -- ---to satisfy European Law for business letters: Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach b. Muenchen Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen Registergericht Muenchen, HRB Nr. 43632 _______________________________________________ Xen-devel mailing list

[SVM] Clear VMCB''s EFER.LME when guest disables paging Since the guest''s CR0.PG is always set (in shadow paging), EFER.LME must be cleared along with EFER.LMA when the guest is disabling paging. Signed-off-by: Travis Betak <travis.betak@amd.com> _______________________________________________ Xen-devel m...

...check --fix > Checking 705 objects > Reset nTSecurityDescriptor on CN=Deleted Objects,DC=tlk,DC=loc back > to provision default? Owner > mismatch: SY (in ref) DA(in current) Group mismatch: SY (in ref) > DA(in current) Part dacl is different between reference and current > here is the detail: (A;;LCRPLORC;;;AU) ACE is not present in the > reference (A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;DA) ACE is not present in > the r eference > (A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;SY) ACE is not present in the r >...

...bcheck --fix Checking 705 objects Reset nTSecurityDescriptor on CN=Deleted Objects,DC=tlk,DC=loc back to provision default? Owner mismatch: SY (in ref) DA(in current) Group mismatch: SY (in ref) DA(in current) Part dacl is different between reference and current here is the detail: (A;;LCRPLORC;;;AU) ACE is not present in the reference (A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;DA) ACE is not present in the r eference (A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;SY) ACE is not prese...

...get LLVMInterpreter [ 64%] Built target LLVMJIT [ 67%] Built target LLVMTarget [ 67%] Built target LLVMAsmParser [ 68%] Built target LLVMDebugger [ 68%] Built target LLVMArchive Linking CXX executable ..\..\bin\opt.exe ..\..\lib\libLLVMSystem.a(RWMutex.cpp.obj):RWMutex.cpp:(.text+0x25): undefined r eference to `_imp__pthread_rwlockattr_init' ..\..\lib\libLLVMSystem.a(RWMutex.cpp.obj):RWMutex.cpp:(.text+0x5f): undefined r eference to `_imp__pthread_rwlockattr_setpshared' ..\..\lib\libLLVMSystem.a(RWMutex.cpp.obj):RWMutex.cpp:(.text+0x76): undefined r eference to `_imp__pthread_rwlock_init...

...heck --fix > Checking 705 objects > Reset nTSecurityDescriptor on CN=Deleted Objects,DC=tlk,DC=loc back > to provision default? Owner > mismatch: SY (in ref) DA(in current) Group mismatch: SY (in ref) DA(in > current) Part dacl is different between reference and current here is > the detail: (A;;LCRPLORC;;;AU) ACE is not present in the reference > (A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;DA) ACE is not present in > the r eference > (A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;SY) ACE is not present in the r >...

...ap.esp = (unsigned long) start_esp; + + ap.ds = __USER_DS; + ap.es = __USER_DS; + ap.fs = 0; + ap.gs = 0; + + ap.eflags = 0; + +#ifdef CONFIG_X86_PAE + /* efer should match BSP efer. */ + if (cpu_has_nx) { + unsigned l, h; + rdmsr(MSR_EFER, l, h); + ap.efer = (unsigned long long) h << 32 | l; + } +#endif + + ap.cr3 = __pa(swapper_pg_dir)...

...ap.esp = (unsigned long) start_esp; + + ap.ds = __USER_DS; + ap.es = __USER_DS; + ap.fs = 0; + ap.gs = 0; + + ap.eflags = 0; + +#ifdef CONFIG_X86_PAE + /* efer should match BSP efer. */ + if (cpu_has_nx) { + unsigned l, h; + rdmsr(MSR_EFER, l, h); + ap.efer = (unsigned long long) h << 32 | l; + } +#endif + + ap.cr3 = __pa(swapper_pg_dir)...

On Fri, 2024-04-12 at 08:03 +0200, Daniel M?ller via samba wrote: > Hello to all, > > After updating to samba 4.20 (from samba 4.19) on Debian 11, samba-tool > dbcheck --cross-ncs > results in: > samba-tool dbcheck --cross-ncs > Checking 4499 objects > Not resetting nTSecurityDescriptor on CN=Deleted > Objects,CN=Configuration,DC=tlk,DC=loc > Not resetting

Remove visibility of the FFXSR CPUID bit to an HVM guest. This patch allows HVM Windows x64 to install/boot on AMD-V platforms. This patches applies cleanly to xen-unstable 13743. Please apply to xen-unstable/3.0.5. If possible, pls apply to xen-3.0.4-testing. --Tom thomas.woller@amd.com AMD Corporation 5204 E. Ben White Blvd. UBC1 Austin, Texas 78741 +1-512-602-0059

...8 padding[3]; + struct kvmi_event_arch arch; + } + +On x86 the structure looks like this:: + + struct kvmi_event_arch { + __u8 mode; + __u8 padding[7]; + struct kvm_regs regs; + struct kvm_sregs sregs; + struct { + __u64 sysenter_cs; + __u64 sysenter_esp; + __u64 sysenter_eip; + __u64 efer; + __u64 star; + __u64 lstar; + __u64 cstar; + __u64 pat; + __u64 shadow_gs; + } msrs; + }; + +It contains information about the vCPU state at the time of the event. + +The reply to events have the *KVMI_EVENT_REPLY* message id and begins +with two common structures:: + + struct kvmi_vcp...

...= w:/R-3.5._/App/R-Portable/ICU I have done export R_ICU_LOCALE=en_US When I try to compile ( 32 bit compile ), I am getting these errors. w:/Rtools35/mingw_32/bin/gcc -std=gnu99 -m32 -shared -s -mwindows -o R.dll R.def console.o dynload.o editor.o embeddedR.o extra.o malloc.o opt.o pager.o pr eferences.o psignal.o rhome.o rt_complete.o rui.o run.o shext.o sys-win32.o system.o dos_wglob.o dllversion.o e_pow.o ../main/libmain.a ../appl/libappl.a . ./nmath/libnmath.a getline/gl.a ../extra/xdr/libxdr.a ../extra/intl/libintl.a ../extra/trio/libtrio.a ../extra/tzone/libtz.a ../extra/tre/libtre.a -...

...all_callback_eip; +#endif + } #ifdef CONFIG_COMPAT else { @@ -1292,7 +1309,9 @@ void context_switch(struct vcpu *prev, s local_flush_tlb_one(GDT_VIRT_START(next) + FIRST_RESERVED_GDT_BYTE); - if ( !is_pv_32on64_vcpu(next) == !(efer & EFER_SCE) ) + if ( (!is_pv_32on64_vcpu(next) + || (next->arch.syscall32_callback_cs & ~3)) == + !(efer & EFER_SCE) ) write_efer(efer ^ EFER_SCE); } #endif Index: 2007-08-08/xen/arch/x86/traps.c =================...

...ore issue seen with 32bit Windows guest VMs. The root cause is that current Xen doesn''t intercept SYSENTER-related MSRs for 32bit guest VMs. As a result, the guest_sysenter_xxx fields contain incorrect values and shouldn''t be used for save/restore. This patch checks the LMA bit of EFER register in the save/restore code path. Please apply it to both Xen-4.0 and Xen-unstable trees. Reported-by: James Harper <james.harper@bendigoit.com.au> Signed-off-by: Wei Huang <wei.huang2@amd.com> Acked-by: Christoph Egger <christoph.egger@amd.com> _______________________...

...1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) gs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) tr 0000 (feffd000/00002088 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0) ldt 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 0 type 2 l 0 g 0 avl 0) gdt f7910/37 idt f8990/0 cr0 10 cr2 0 cr3 0 cr4 0 cr8 0 efer 0 code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 --> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Any hints? Thanks AthLux -- Don't Panic

...8 padding[3]; + struct kvmi_event_arch arch; + } + +On x86 the structure looks like this:: + + struct kvmi_event_arch { + __u8 mode; + __u8 padding[7]; + struct kvm_regs regs; + struct kvm_sregs sregs; + struct { + __u64 sysenter_cs; + __u64 sysenter_esp; + __u64 sysenter_eip; + __u64 efer; + __u64 star; + __u64 lstar; + __u64 cstar; + __u64 pat; + __u64 shadow_gs; + } msrs; + }; + +It contains information about the vCPU state at the time of the event. + +Specific data can follow these common structures. + +1. KVMI_EVENT_UNHOOK +-------------------- + +:Architecture: all +...

...- stock/linux-2.6.21-rc6-mm1/include/asm-i386/msr-index.h 1969-12-31 16:00:00.000000000 -0800 +++ linux-2.6.21-rc6-mm1/include/asm-i386/msr-index.h 2007-04-09 18:14:04.000000000 -0700 @@ -0,0 +1,270 @@ +#ifndef __ASM_MSR_INDEX_H +#define __ASM_MSR_INDEX_ H + +/* x86-64 specific MSRs */ +#define MSR_EFER 0xc0000080 /* extended feature register */ +#define MSR_STAR 0xc0000081 /* legacy mode SYSCALL target */ +#define MSR_LSTAR 0xc0000082 /* long mode SYSCALL target */ +#define MSR_CSTAR 0xc0000083 /* compat mode SYSCALL target */ +#define MSR_SYSCALL_MASK 0xc0000084 /* EFLAGS mask for syscall */...