search for: df_stack

...de/asm/cpu_entry_area.h index 8902fdb7de13..f87e4c0c16f4 100644 --- a/arch/x86/include/asm/cpu_entry_area.h +++ b/arch/x86/include/asm/cpu_entry_area.h @@ -11,25 +11,29 @@ #ifdef CONFIG_X86_64 /* Macro to enforce the same ordering and stack sizes */ -#define ESTACKS_MEMBERS(guardsize) \ - char DF_stack_guard[guardsize]; \ - char DF_stack[EXCEPTION_STKSZ]; \ - char NMI_stack_guard[guardsize]; \ - char NMI_stack[EXCEPTION_STKSZ]; \ - char DB_stack_guard[guardsize]; \ - char DB_stack[EXCEPTION_STKSZ]; \ - char MCE_stack_guard[guardsize]; \ - char MCE_stack[EXCEPTION_STKSZ]; \ - char IST_top_guard[gu...

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

...GUEST_NMI_IST-1] = (unsigned long)(&vcpu->nmi_stack_end); + printk("nmi stack at: %llx\n", vcpu->tss.ist[LGUEST_NMI_IST-1]); + + /* temp debug stuff */ + vcpu->tss.ist[5-1] = (unsigned long)(&vcpu->gpf_stack_end); + vcpu->tss.ist[6-1] = (unsigned long)(&vcpu->df_stack_end); + /* + * Load the host nmi stack into the guest tss. This prevents races + * in loading the TR and IDT. + */ + tss = (struct ldttss_desc *)&gdt_table[GDT_ENTRY_TSS]; + target = (u64)tss->base0 | + ((u64)tss->base1 << 16) | + ((u64)tss->base2 << 24) | + ((u64)tss...

...GUEST_NMI_IST-1] = (unsigned long)(&vcpu->nmi_stack_end); + printk("nmi stack at: %llx\n", vcpu->tss.ist[LGUEST_NMI_IST-1]); + + /* temp debug stuff */ + vcpu->tss.ist[5-1] = (unsigned long)(&vcpu->gpf_stack_end); + vcpu->tss.ist[6-1] = (unsigned long)(&vcpu->df_stack_end); + /* + * Load the host nmi stack into the guest tss. This prevents races + * in loading the TR and IDT. + */ + tss = (struct ldttss_desc *)&gdt_table[GDT_ENTRY_TSS]; + target = (u64)tss->base0 | + ((u64)tss->base1 << 16) | + ((u64)tss->base2 << 24) | + ((u64)tss...

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 fourth version of the SEV-ES Guest Support patches. I addressed the review comments sent to me for the previous version and rebased the code v5.8-rc5. The biggest change in this version is the IST handling code for the #VC handler. I adapted the entry code for the #VC handler to the big pile of entry code changes merged into

From: Joerg Roedel <jroedel at suse.de> Hi, here is the fourth version of the SEV-ES Guest Support patches. I addressed the review comments sent to me for the previous version and rebased the code v5.8-rc5. The biggest change in this version is the IST handling code for the #VC handler. I adapted the entry code for the #VC handler to the big pile of entry code changes merged into

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