search for: startup_64_setup_env

...el/head64.c @@ -36,6 +36,7 @@ #include <asm/microcode.h> #include <asm/kasan.h> #include <asm/fixmap.h> +#include <asm/realmode.h> /* * Manage page tables very early on. @@ -513,6 +514,8 @@ void __init x86_64_start_reservations(char *real_mode_data) */ void __head startup_64_setup_env(unsigned long physbase) { + unsigned long gsbase; + /* Load GDT */ startup_gdt_descr.address = (unsigned long)fixup_pointer(startup_gdt, physbase); native_load_gdt(&startup_gdt_descr); @@ -521,4 +524,8 @@ void __head startup_64_setup_env(unsigned long physbase) asm volatile("movl...

...el/head64.c @@ -36,6 +36,7 @@ #include <asm/microcode.h> #include <asm/kasan.h> #include <asm/fixmap.h> +#include <asm/realmode.h> /* * Manage page tables very early on. @@ -513,6 +514,8 @@ void __init x86_64_start_reservations(char *real_mode_data) */ void __head startup_64_setup_env(unsigned long physbase) { + unsigned long gsbase; + /* Load GDT */ startup_gdt_descr.address = (unsigned long)fixup_pointer(startup_gdt, physbase); native_load_gdt(&startup_gdt_descr); @@ -521,4 +524,8 @@ void __head startup_64_setup_env(unsigned long physbase) asm volatile("movl...

...10:54:26AM +0200, Joerg Roedel wrote: > diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S > index 2b2e91627221..800053219054 100644 > --- a/arch/x86/kernel/head_64.S > +++ b/arch/x86/kernel/head_64.S > @@ -78,6 +78,14 @@ SYM_CODE_START_NOALIGN(startup_64) > call startup_64_setup_env > popq %rsi > > + /* > + * Setup %gs here already to make stack-protector work - it needs to be > + * setup again after the switch to kernel addresses. The address read > + * from initial_gs is a kernel address, so it needs to be adjusted first > + * for the identity ma...

...up_getcpu(int cpu) { } +#endif static inline unsigned long get_debugctlmsr(void) { diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h index 0ce6453c9272..bbd40dd20be7 100644 --- a/arch/x86/include/asm/setup.h +++ b/arch/x86/include/asm/setup.h @@ -54,6 +54,7 @@ extern void startup_64_setup_env(unsigned long physbase); extern void early_idt_setup_early_handler(unsigned long physaddr); extern void early_load_idt(void); extern void early_idt_setup(unsigned long physbase); +extern void early_load_tss(void); extern void __init do_early_exception(struct pt_regs *regs, int trapnr); #ifde...

...h/x86/include/asm/setup.h index 8aa6ba0427b0..5c09f50ecf1c 100644 --- a/arch/x86/include/asm/setup.h +++ b/arch/x86/include/asm/setup.h @@ -50,6 +50,8 @@ extern unsigned long __startup_64(unsigned long physaddr, struct boot_params *bp extern unsigned long __startup_secondary_64(void); extern void startup_64_setup_env(unsigned long physbase); extern int early_make_pgtable(unsigned long address); +extern void early_idt_setup_early_handler(unsigned long physaddr); +extern void early_load_idt(void); #ifdef CONFIG_X86_INTEL_MID extern void x86_intel_mid_early_setup(void); @@ -66,6 +68,7 @@ static inline void x8...

...5 files changed, 75 insertions(+) diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h index cafae86813ae..0ce6453c9272 100644 --- a/arch/x86/include/asm/setup.h +++ b/arch/x86/include/asm/setup.h @@ -53,6 +53,7 @@ extern unsigned long __startup_secondary_64(void); extern void startup_64_setup_env(unsigned long physbase); extern void early_idt_setup_early_handler(unsigned long physaddr); extern void early_load_idt(void); +extern void early_idt_setup(unsigned long physbase); extern void __init do_early_exception(struct pt_regs *regs, int trapnr); #ifdef CONFIG_X86_INTEL_MID diff --git a...

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 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 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