search for: set_pud

This series contain fixes to make the paravirt_ops code compile and boot on x86_64. This is a follow-up for the previous series from Glauber.

This series contain fixes to make the paravirt_ops code compile and boot on x86_64. This is a follow-up for the previous series from Glauber.

...of(pmdval_t) > sizeof(long)) - ret = PVOP_CALLEE2(pmdval_t, mmu.pmd_val, - pmd.pmd, (u64)pmd.pmd >> 32); - else - ret = PVOP_CALLEE1(pmdval_t, mmu.pmd_val, pmd.pmd); + ret = PVOP_CALLEE1(pmdval_t, mmu.pmd_val, pmd.pmd); return ret; } @@ -504,12 +463,9 @@ static inline void set_pud(pud_t *pudp, pud_t pud) { pudval_t val = native_pud_val(pud); - if (sizeof(pudval_t) > sizeof(long)) - PVOP_VCALL3(mmu.set_pud, pudp, val, (u64)val >> 32); - else - PVOP_VCALL2(mmu.set_pud, pudp, val); + PVOP_VCALL2(mmu.set_pud, pudp, val); } -#if CONFIG_PGTABLE_LEVELS >= 4 + s...

...ret; - - if (sizeof(pmdval_t) > sizeof(long)) - ret = PVOP_CALLEE2(pmdval_t, mmu.pmd_val, - pmd.pmd, (u64)pmd.pmd >> 32); - else - ret = PVOP_CALLEE1(pmdval_t, mmu.pmd_val, pmd.pmd); - - return ret; + return PVOP_CALLEE1(pmdval_t, mmu.pmd_val, pmd.pmd); } static inline void set_pud(pud_t *pudp, pud_t pud) { - pudval_t val = native_pud_val(pud); - - if (sizeof(pudval_t) > sizeof(long)) - PVOP_VCALL3(mmu.set_pud, pudp, val, (u64)val >> 32); - else - PVOP_VCALL2(mmu.set_pud, pudp, val); + PVOP_VCALL2(mmu.set_pud, pudp, native_pud_val(pud)); } -#if CONFIG_PGTABLE_LEV...

...============================================= --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -903,6 +903,14 @@ pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(base))); } +static __init void xen_post_allocator_init(void) +{ + pv_mmu_ops.set_pmd = xen_set_pmd; + pv_mmu_ops.set_pud = xen_set_pud; + + xen_mark_init_mm_pinned(); +} + /* This is called once we have the cpu_possible_map */ void xen_setup_vcpu_info_placement(void) { @@ -990,7 +998,7 @@ .banner = xen_banner, .memory_setup = xen_memory_setup, .arch_setup = xen_arch_setup, - .post_allocator_init = xen_mark_i...

...INE__, &(e), pgd_val(e)) - -#define pgd_none(x) (!pgd_val(x)) -#define pud_none(x) (!pud_val(x)) +#ifdef CONFIG_PARAVIRT +#include <asm/paravirt.h> +#else +#define set_pte native_set_pte +#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) +#define set_pmd native_set_pmd +#define set_pud native_set_pud +#define set_pgd native_set_pgd +#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) +#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) +#define pud_clear native_pud_clear +#define pgd_clear native_pgd_clear +#define ptep_get_and_clear(mm,ad...

...INE__, &(e), pgd_val(e)) - -#define pgd_none(x) (!pgd_val(x)) -#define pud_none(x) (!pud_val(x)) +#ifdef CONFIG_PARAVIRT +#include <asm/paravirt.h> +#else +#define set_pte native_set_pte +#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) +#define set_pmd native_set_pmd +#define set_pud native_set_pud +#define set_pgd native_set_pgd +#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) +#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) +#define pud_clear native_pud_clear +#define pgd_clear native_pgd_clear +#define ptep_get_and_clear(mm,ad...

A lot of cleanup after removal of 32-bit Xen PV guest support in paravirt code. Changes in V4: - dropped patches 1-3, as already committed - addressed comments to V3 - added new patches 5+6 Changes in V3: - addressed comments to V2 - split patch 1 into 2 patches - new patches 3 and 7 Changes in V2: - rebase to 5.8 kernel - addressed comments to V1 - new patches 3 and 4 Juergen Gross (6):

The long term plan has been to replace Xen PV guests by PVH. The first victim of that plan are now 32-bit PV guests, as those are used only rather seldom these days. Xen on x86 requires 64-bit support and with Grub2 now supporting PVH officially since version 2.04 there is no need to keep 32-bit PV guest support alive in the Linux kernel. Additionally Meltdown mitigation is not available in the

The long term plan has been to replace Xen PV guests by PVH. The first victim of that plan are now 32-bit PV guests, as those are used only rather seldom these days. Xen on x86 requires 64-bit support and with Grub2 now supporting PVH officially since version 2.04 there is no need to keep 32-bit PV guest support alive in the Linux kernel. Additionally Meltdown mitigation is not available in the

The long term plan has been to replace Xen PV guests by PVH. The first victim of that plan are now 32-bit PV guests, as those are used only rather seldom these days. Xen on x86 requires 64-bit support and with Grub2 now supporting PVH officially since version 2.04 there is no need to keep 32-bit PV guest support alive in the Linux kernel. Additionally Meltdown mitigation is not available in the

The long term plan has been to replace Xen PV guests by PVH. The first victim of that plan are now 32-bit PV guests, as those are used only rather seldom these days. Xen on x86 requires 64-bit support and with Grub2 now supporting PVH officially since version 2.04 there is no need to keep 32-bit PV guest support alive in the Linux kernel. Additionally Meltdown mitigation is not available in the

The long term plan has been to replace Xen PV guests by PVH. The first victim of that plan are now 32-bit PV guests, as those are used only rather seldom these days. Xen on x86 requires 64-bit support and with Grub2 now supporting PVH officially since version 2.04 there is no need to keep 32-bit PV guest support alive in the Linux kernel. Additionally Meltdown mitigation is not available in the

Hey folks, This is the part-of-pvops-implementation-that-is-not-exactly-a-merge. Neat, uh? This is the majority of the work. The first patch in the series does not really belong here. It was already sent to lkml separetedly before, but I'm including it again, for a very simple reason: Try to test the paravirt patches without it, and you'll fail miserably ;-) (and it was not yet

Hey folks, This is the part-of-pvops-implementation-that-is-not-exactly-a-merge. Neat, uh? This is the majority of the work. The first patch in the series does not really belong here. It was already sent to lkml separetedly before, but I'm including it again, for a very simple reason: Try to test the paravirt patches without it, and you'll fail miserably ;-) (and it was not yet

...e_set_pmd, + .pte_update = paravirt_nop, + .pte_update_defer = paravirt_nop, #ifdef CONFIG_HIGHPTE - .kmap_atomic_pte = kmap_atomic, + .kmap_atomic_pte = kmap_atomic, #endif #ifdef CONFIG_X86_PAE - .set_pte_atomic = native_set_pte_atomic, - .set_pte_present = native_set_pte_present, - .set_pud = native_set_pud, - .pte_clear = native_pte_clear, - .pmd_clear = native_pmd_clear, - - .pmd_val = native_pmd_val, - .make_pmd = native_make_pmd, + .set_pte_atomic = native_set_pte_atomic, + .set_pte_present = native_set_pte_present, + .set_pud = native_set_pud, + .pte_clear = native_pte_cl...

...e_set_pmd, + .pte_update = paravirt_nop, + .pte_update_defer = paravirt_nop, #ifdef CONFIG_HIGHPTE - .kmap_atomic_pte = kmap_atomic, + .kmap_atomic_pte = kmap_atomic, #endif #ifdef CONFIG_X86_PAE - .set_pte_atomic = native_set_pte_atomic, - .set_pte_present = native_set_pte_present, - .set_pud = native_set_pud, - .pte_clear = native_pte_clear, - .pmd_clear = native_pmd_clear, - - .pmd_val = native_pmd_val, - .make_pmd = native_make_pmd, + .set_pte_atomic = native_set_pte_atomic, + .set_pte_present = native_set_pte_present, + .set_pud = native_set_pud, + .pte_clear = native_pte_cl...

...e_set_pmd, + .pte_update = paravirt_nop, + .pte_update_defer = paravirt_nop, #ifdef CONFIG_HIGHPTE - .kmap_atomic_pte = kmap_atomic, + .kmap_atomic_pte = kmap_atomic, #endif #ifdef CONFIG_X86_PAE - .set_pte_atomic = native_set_pte_atomic, - .set_pte_present = native_set_pte_present, - .set_pud = native_set_pud, - .pte_clear = native_pte_clear, - .pmd_clear = native_pmd_clear, - - .pmd_val = native_pmd_val, - .make_pmd = native_make_pmd, + .set_pte_atomic = native_set_pte_atomic, + .set_pte_present = native_set_pte_present, + .set_pud = native_set_pud, + .pte_clear = native_pte_cl...

...e_set_pmd, + .pte_update = paravirt_nop, + .pte_update_defer = paravirt_nop, #ifdef CONFIG_HIGHPTE - .kmap_atomic_pte = kmap_atomic, + .kmap_atomic_pte = kmap_atomic, #endif #ifdef CONFIG_X86_PAE - .set_pte_atomic = native_set_pte_atomic, - .set_pte_present = native_set_pte_present, - .set_pud = native_set_pud, - .pte_clear = native_pte_clear, - .pmd_clear = native_pmd_clear, - - .pmd_val = native_pmd_val, - .make_pmd = native_make_pmd, + .set_pte_atomic = native_set_pte_atomic, + .set_pte_present = native_set_pte_present, + .set_pud = native_set_pud, + .pte_clear = native_pte_cl...

...); + + if (vmi_ops.set_pte) { + paravirt_ops.set_pte = vmi_set_pte; + paravirt_ops.set_pte_at = vmi_set_pte_at; + paravirt_ops.set_pmd = vmi_set_pmd; +#ifdef CONFIG_X86_PAE + paravirt_ops.set_pte_atomic = vmi_set_pte_atomic; + paravirt_ops.set_pte_present = vmi_set_pte_present; + paravirt_ops.set_pud = vmi_set_pud; + paravirt_ops.pte_clear = vmi_pte_clear; + paravirt_ops.pmd_clear = vmi_pmd_clear; +#endif + } + + if (vmi_ops.update_pte) { + paravirt_ops.pte_update = vmi_update_pte; + paravirt_ops.pte_update_defer = vmi_update_pte_defer; + } + vmi_ops.allocate_page = vmi_get_function(VMI_C...