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-rw-r--r--arch/x86/xen/enlighten_pv.c10
-rw-r--r--arch/x86/xen/mmu_pv.c20
-rw-r--r--arch/x86/xen/setup.c10
-rw-r--r--arch/x86/xen/xen-head.S37
4 files changed, 41 insertions, 36 deletions
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 93b658248d01..27fc170838e9 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -79,7 +79,7 @@
#ifdef CONFIG_ACPI
#include <linux/acpi.h>
#include <asm/acpi.h>
-#include <acpi/pdc_intel.h>
+#include <acpi/proc_cap_intel.h>
#include <acpi/processor.h>
#include <xen/interface/platform.h>
#endif
@@ -288,17 +288,17 @@ static bool __init xen_check_mwait(void)
native_cpuid(&ax, &bx, &cx, &dx);
- /* Ask the Hypervisor whether to clear ACPI_PDC_C_C2C3_FFH. If so,
+ /* Ask the Hypervisor whether to clear ACPI_PROC_CAP_C_C2C3_FFH. If so,
* don't expose MWAIT_LEAF and let ACPI pick the IOPORT version of C3.
*/
buf[0] = ACPI_PDC_REVISION_ID;
buf[1] = 1;
- buf[2] = (ACPI_PDC_C_CAPABILITY_SMP | ACPI_PDC_EST_CAPABILITY_SWSMP);
+ buf[2] = (ACPI_PROC_CAP_C_CAPABILITY_SMP | ACPI_PROC_CAP_EST_CAPABILITY_SWSMP);
set_xen_guest_handle(op.u.set_pminfo.pdc, buf);
if ((HYPERVISOR_platform_op(&op) == 0) &&
- (buf[2] & (ACPI_PDC_C_C1_FFH | ACPI_PDC_C_C2C3_FFH))) {
+ (buf[2] & (ACPI_PROC_CAP_C_C1_FFH | ACPI_PROC_CAP_C_C2C3_FFH))) {
cpuid_leaf5_ecx_val = cx;
cpuid_leaf5_edx_val = dx;
}
@@ -523,7 +523,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
BUG_ON(size > PAGE_SIZE);
BUG_ON(va & ~PAGE_MASK);
- pfn = virt_to_pfn(va);
+ pfn = virt_to_pfn((void *)va);
mfn = pfn_to_mfn(pfn);
pte = pfn_pte(pfn, PAGE_KERNEL_RO);
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index e0a975165de7..1b5cba70c236 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -667,7 +667,7 @@ static spinlock_t *xen_pte_lock(struct page *page, struct mm_struct *mm)
spinlock_t *ptl = NULL;
#if USE_SPLIT_PTE_PTLOCKS
- ptl = ptlock_ptr(page);
+ ptl = ptlock_ptr(page_ptdesc(page));
spin_lock_nest_lock(ptl, &mm->page_table_lock);
#endif
@@ -2202,13 +2202,13 @@ static void xen_zap_pfn_range(unsigned long vaddr, unsigned int order,
mcs = __xen_mc_entry(0);
if (in_frames)
- in_frames[i] = virt_to_mfn(vaddr);
+ in_frames[i] = virt_to_mfn((void *)vaddr);
MULTI_update_va_mapping(mcs.mc, vaddr, VOID_PTE, 0);
- __set_phys_to_machine(virt_to_pfn(vaddr), INVALID_P2M_ENTRY);
+ __set_phys_to_machine(virt_to_pfn((void *)vaddr), INVALID_P2M_ENTRY);
if (out_frames)
- out_frames[i] = virt_to_pfn(vaddr);
+ out_frames[i] = virt_to_pfn((void *)vaddr);
}
xen_mc_issue(0);
}
@@ -2250,7 +2250,7 @@ static void xen_remap_exchanged_ptes(unsigned long vaddr, int order,
MULTI_update_va_mapping(mcs.mc, vaddr,
mfn_pte(mfn, PAGE_KERNEL), flags);
- set_phys_to_machine(virt_to_pfn(vaddr), mfn);
+ set_phys_to_machine(virt_to_pfn((void *)vaddr), mfn);
}
xen_mc_issue(0);
@@ -2310,12 +2310,6 @@ int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
int success;
unsigned long vstart = (unsigned long)phys_to_virt(pstart);
- /*
- * Currently an auto-translated guest will not perform I/O, nor will
- * it require PAE page directories below 4GB. Therefore any calls to
- * this function are redundant and can be ignored.
- */
-
if (unlikely(order > MAX_CONTIG_ORDER))
return -ENOMEM;
@@ -2327,7 +2321,7 @@ int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
xen_zap_pfn_range(vstart, order, in_frames, NULL);
/* 2. Get a new contiguous memory extent. */
- out_frame = virt_to_pfn(vstart);
+ out_frame = virt_to_pfn((void *)vstart);
success = xen_exchange_memory(1UL << order, 0, in_frames,
1, order, &out_frame,
address_bits);
@@ -2360,7 +2354,7 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
spin_lock_irqsave(&xen_reservation_lock, flags);
/* 1. Find start MFN of contiguous extent. */
- in_frame = virt_to_mfn(vstart);
+ in_frame = virt_to_mfn((void *)vstart);
/* 2. Zap current PTEs. */
xen_zap_pfn_range(vstart, order, NULL, out_frames);
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 8b5cf7bb1f47..b3e37961065a 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -44,6 +44,9 @@ struct xen_memory_region xen_extra_mem[XEN_EXTRA_MEM_MAX_REGIONS] __initdata;
/* Number of pages released from the initial allocation. */
unsigned long xen_released_pages;
+/* Memory map would allow PCI passthrough. */
+bool xen_pv_pci_possible;
+
/* E820 map used during setting up memory. */
static struct e820_table xen_e820_table __initdata;
@@ -340,7 +343,7 @@ static void __init xen_do_set_identity_and_remap_chunk(
WARN_ON(size == 0);
- mfn_save = virt_to_mfn(buf);
+ mfn_save = virt_to_mfn((void *)buf);
for (ident_pfn_iter = start_pfn, remap_pfn_iter = remap_pfn;
ident_pfn_iter < ident_end_pfn;
@@ -503,7 +506,7 @@ void __init xen_remap_memory(void)
unsigned long pfn_s = ~0UL;
unsigned long len = 0;
- mfn_save = virt_to_mfn(buf);
+ mfn_save = virt_to_mfn((void *)buf);
while (xen_remap_mfn != INVALID_P2M_ENTRY) {
/* Map the remap information */
@@ -814,6 +817,9 @@ char * __init xen_memory_setup(void)
chunk_size = size;
type = xen_e820_table.entries[i].type;
+ if (type == E820_TYPE_RESERVED)
+ xen_pv_pci_possible = true;
+
if (type == E820_TYPE_RAM) {
if (addr < mem_end) {
chunk_size = min(size, mem_end - addr);
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 643d02900fbb..a0ea285878db 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -90,30 +90,35 @@ SYM_CODE_END(xen_cpu_bringup_again)
ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz "linux")
ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz "2.6")
ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz "xen-3.0")
-#ifdef CONFIG_X86_32
- ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, _ASM_PTR __PAGE_OFFSET)
-#else
+#ifdef CONFIG_XEN_PV
ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, _ASM_PTR __START_KERNEL_map)
/* Map the p2m table to a 512GB-aligned user address. */
ELFNOTE(Xen, XEN_ELFNOTE_INIT_P2M, .quad (PUD_SIZE * PTRS_PER_PUD))
-#endif
-#ifdef CONFIG_XEN_PV
ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, _ASM_PTR startup_xen)
-#endif
- ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, _ASM_PTR hypercall_page)
- ELFNOTE(Xen, XEN_ELFNOTE_FEATURES,
- .ascii "!writable_page_tables|pae_pgdir_above_4gb")
- ELFNOTE(Xen, XEN_ELFNOTE_SUPPORTED_FEATURES,
- .long (1 << XENFEAT_writable_page_tables) | \
- (1 << XENFEAT_dom0) | \
- (1 << XENFEAT_linux_rsdp_unrestricted))
+ ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .ascii "!writable_page_tables")
ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "yes")
- ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz "generic")
ELFNOTE(Xen, XEN_ELFNOTE_L1_MFN_VALID,
.quad _PAGE_PRESENT; .quad _PAGE_PRESENT)
- ELFNOTE(Xen, XEN_ELFNOTE_SUSPEND_CANCEL, .long 1)
ELFNOTE(Xen, XEN_ELFNOTE_MOD_START_PFN, .long 1)
- ELFNOTE(Xen, XEN_ELFNOTE_HV_START_LOW, _ASM_PTR __HYPERVISOR_VIRT_START)
ELFNOTE(Xen, XEN_ELFNOTE_PADDR_OFFSET, _ASM_PTR 0)
+# define FEATURES_PV (1 << XENFEAT_writable_page_tables)
+#else
+# define FEATURES_PV 0
+#endif
+#ifdef CONFIG_XEN_PVH
+# define FEATURES_PVH (1 << XENFEAT_linux_rsdp_unrestricted)
+#else
+# define FEATURES_PVH 0
+#endif
+#ifdef CONFIG_XEN_DOM0
+# define FEATURES_DOM0 (1 << XENFEAT_dom0)
+#else
+# define FEATURES_DOM0 0
+#endif
+ ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, _ASM_PTR hypercall_page)
+ ELFNOTE(Xen, XEN_ELFNOTE_SUPPORTED_FEATURES,
+ .long FEATURES_PV | FEATURES_PVH | FEATURES_DOM0)
+ ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz "generic")
+ ELFNOTE(Xen, XEN_ELFNOTE_SUSPEND_CANCEL, .long 1)
#endif /*CONFIG_XEN */
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-04 10:45:04 +0300