search for: tss_setup_io_bitmap

...static inline unsigned long get_debugctlmsr(void) > diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c > index 1d65365363a1..a9527c0c38fb 100644 > --- a/arch/x86/kernel/cpu/common.c > +++ b/arch/x86/kernel/cpu/common.c > @@ -1854,6 +1854,29 @@ static inline void tss_setup_io_bitmap(struct tss_struct *tss) > #endif > } > > +/* > + * Setup everything needed to handle exceptions from the IDT, including the IST > + * exceptions which use paranoid_entry() > + */ > +void cpu_init_exception_handling(void) > +{ > + struct tss_struct *tss = this_cpu_p...

...c inline void ucode_cpu_init(int cpu) { show_ucode_info_early(); } -static inline void tss_setup_ist(struct tss_struct *tss) { } +static inline void tss_setup_ist(struct tss_struct *tss, struct cpu_entry_area *cea) { } #endif /* !CONFIG_X86_64 */ @@ -1854,6 +1853,17 @@ static inline void tss_setup_io_bitmap(struct tss_struct *tss) #endif } +void tss_setup(int cpu) +{ + struct tss_struct *tss = per_cpu_ptr(&cpu_tss_rw, cpu); + struct cpu_entry_area *cea = get_cpu_entry_area(cpu); + + /* Initialize the TSS for cpu. */ + tss_setup_ist(tss, cea); + tss_setup_io_bitmap(tss); + set_tss_desc(cpu, &am...

...void cr4_init(void); static inline unsigned long get_debugctlmsr(void) diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 1d65365363a1..a9527c0c38fb 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1854,6 +1854,29 @@ static inline void tss_setup_io_bitmap(struct tss_struct *tss) #endif } +/* + * Setup everything needed to handle exceptions from the IDT, including the IST + * exceptions which use paranoid_entry() + */ +void cpu_init_exception_handling(void) +{ + struct tss_struct *tss = this_cpu_ptr(&cpu_tss_rw); + int cpu = raw_smp_processor...

From: Joerg Roedel <jroedel at suse.de> Hi, here is a rebased version of the latest SEV-ES patches. They are now based on latest tip/master instead of upstream Linux and include the necessary changes. Changes to v4 are in particular: - Moved early IDT setup code to idt.c, because the idt_descr and the idt_table are now static - This required to make stack protector work early (or

From: Joerg Roedel <jroedel at suse.de> Hi, here is the new version of the SEV-ES client enabling patch-set. It is based on the latest tip/master branch and contains the necessary changes. In particular those ar: - Enabling CR4.FSGSBASE early on supported processors so that early #VC exceptions on APs can be handled. - Add another patch (patch 1) to fix a KVM frame-size build

From: Joerg Roedel <jroedel at suse.de> Hi, here is a new version of the SEV-ES Guest Support patches for x86. The previous versions can be found as a linked list starting here: https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/ I updated the patch-set based on ther review comments I got and the discussions around it. Another important change is that the early IDT

From: Joerg Roedel <jroedel at suse.de> Hi, here is a new version of the SEV-ES Guest Support patches for x86. The previous versions can be found as a linked list starting here: https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/ I updated the patch-set based on ther review comments I got and the discussions around it. Another important change is that the early IDT