diff options
Diffstat (limited to 'arch/x86/include/asm/xen')
| -rw-r--r-- | arch/x86/include/asm/xen/cpuid.h | 9 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/events.h | 3 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/hypervisor.h | 14 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/page-coherent.h | 24 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/page.h | 22 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/swiotlb-xen.h | 8 |
6 files changed, 24 insertions, 56 deletions
diff --git a/arch/x86/include/asm/xen/cpuid.h b/arch/x86/include/asm/xen/cpuid.h index a9630104f1c4..6daa9b0c8d11 100644 --- a/arch/x86/include/asm/xen/cpuid.h +++ b/arch/x86/include/asm/xen/cpuid.h @@ -100,6 +100,15 @@ /* Memory mapped from other domains has valid IOMMU entries */ #define XEN_HVM_CPUID_IOMMU_MAPPINGS (1u << 2) #define XEN_HVM_CPUID_VCPU_ID_PRESENT (1u << 3) /* vcpu id is present in EBX */ +#define XEN_HVM_CPUID_DOMID_PRESENT (1u << 4) /* domid is present in ECX */ +/* + * Bits 55:49 from the IO-APIC RTE and bits 11:5 from the MSI address can be + * used to store high bits for the Destination ID. This expands the Destination + * ID field from 8 to 15 bits, allowing to target APIC IDs up 32768. + */ +#define XEN_HVM_CPUID_EXT_DEST_ID (1u << 5) +/* Per-vCPU event channel upcalls */ +#define XEN_HVM_CPUID_UPCALL_VECTOR (1u << 6) /* * Leaf 6 (0x40000x05) diff --git a/arch/x86/include/asm/xen/events.h b/arch/x86/include/asm/xen/events.h index 068d9b067c83..62bdceb594f1 100644 --- a/arch/x86/include/asm/xen/events.h +++ b/arch/x86/include/asm/xen/events.h @@ -23,7 +23,7 @@ static inline int xen_irqs_disabled(struct pt_regs *regs) /* No need for a barrier -- XCHG is a barrier on x86. */ #define xchg_xen_ulong(ptr, val) xchg((ptr), (val)) -extern int xen_have_vector_callback; +extern bool xen_have_vector_callback; /* * Events delivered via platform PCI interrupts are always @@ -34,4 +34,5 @@ static inline bool xen_support_evtchn_rebind(void) return (!xen_hvm_domain() || xen_have_vector_callback); } +extern bool xen_percpu_upcall; #endif /* _ASM_X86_XEN_EVENTS_H */ diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h index 5adab895127e..16f548a661cf 100644 --- a/arch/x86/include/asm/xen/hypervisor.h +++ b/arch/x86/include/asm/xen/hypervisor.h @@ -43,18 +43,12 @@ static inline uint32_t xen_cpuid_base(void) return hypervisor_cpuid_base("XenVMMXenVMM", 2); } -#ifdef CONFIG_XEN -extern bool __init xen_hvm_need_lapic(void); +struct pci_dev; -static inline bool __init xen_x2apic_para_available(void) -{ - return xen_hvm_need_lapic(); -} +#ifdef CONFIG_XEN_PV_DOM0 +bool xen_initdom_restore_msi(struct pci_dev *dev); #else -static inline bool __init xen_x2apic_para_available(void) -{ - return (xen_cpuid_base() != 0); -} +static inline bool xen_initdom_restore_msi(struct pci_dev *dev) { return true; } #endif #ifdef CONFIG_HOTPLUG_CPU diff --git a/arch/x86/include/asm/xen/page-coherent.h b/arch/x86/include/asm/xen/page-coherent.h deleted file mode 100644 index 63cd41b2e17a..000000000000 --- a/arch/x86/include/asm/xen/page-coherent.h +++ /dev/null @@ -1,24 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_X86_XEN_PAGE_COHERENT_H -#define _ASM_X86_XEN_PAGE_COHERENT_H - -#include <asm/page.h> -#include <linux/dma-mapping.h> - -static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags, - unsigned long attrs) -{ - void *vstart = (void*)__get_free_pages(flags, get_order(size)); - *dma_handle = virt_to_phys(vstart); - return vstart; -} - -static inline void xen_free_coherent_pages(struct device *hwdev, size_t size, - void *cpu_addr, dma_addr_t dma_handle, - unsigned long attrs) -{ - free_pages((unsigned long) cpu_addr, get_order(size)); -} - -#endif /* _ASM_X86_XEN_PAGE_COHERENT_H */ diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h index 1a162e559753..fa9ec20783fa 100644 --- a/arch/x86/include/asm/xen/page.h +++ b/arch/x86/include/asm/xen/page.h @@ -96,11 +96,7 @@ static inline int xen_safe_write_ulong(unsigned long *addr, unsigned long val) asm volatile("1: mov %[val], %[ptr]\n" "2:\n" - ".section .fixup, \"ax\"\n" - "3: sub $1, %[ret]\n" - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) + _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_EFAULT_REG, %[ret]) : [ret] "+r" (ret), [ptr] "=m" (*addr) : [val] "r" (val)); @@ -110,16 +106,12 @@ static inline int xen_safe_write_ulong(unsigned long *addr, unsigned long val) static inline int xen_safe_read_ulong(const unsigned long *addr, unsigned long *val) { - int ret = 0; unsigned long rval = ~0ul; + int ret = 0; asm volatile("1: mov %[ptr], %[rval]\n" "2:\n" - ".section .fixup, \"ax\"\n" - "3: sub $1, %[ret]\n" - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) + _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_EFAULT_REG, %[ret]) : [ret] "+r" (ret), [rval] "+r" (rval) : [ptr] "m" (*addr)); *val = rval; @@ -355,9 +347,6 @@ unsigned long arbitrary_virt_to_mfn(void *vaddr); void make_lowmem_page_readonly(void *vaddr); void make_lowmem_page_readwrite(void *vaddr); -#define xen_remap(cookie, size) ioremap((cookie), (size)) -#define xen_unmap(cookie) iounmap((cookie)) - static inline bool xen_arch_need_swiotlb(struct device *dev, phys_addr_t phys, dma_addr_t dev_addr) @@ -365,9 +354,4 @@ static inline bool xen_arch_need_swiotlb(struct device *dev, return false; } -static inline unsigned long xen_get_swiotlb_free_pages(unsigned int order) -{ - return __get_free_pages(__GFP_NOWARN, order); -} - #endif /* _ASM_X86_XEN_PAGE_H */ diff --git a/arch/x86/include/asm/xen/swiotlb-xen.h b/arch/x86/include/asm/xen/swiotlb-xen.h index 66b4ddde7743..77a2d19cc990 100644 --- a/arch/x86/include/asm/xen/swiotlb-xen.h +++ b/arch/x86/include/asm/xen/swiotlb-xen.h @@ -3,11 +3,15 @@ #define _ASM_X86_SWIOTLB_XEN_H #ifdef CONFIG_SWIOTLB_XEN -extern int __init pci_xen_swiotlb_detect(void); extern int pci_xen_swiotlb_init_late(void); #else -#define pci_xen_swiotlb_detect NULL static inline int pci_xen_swiotlb_init_late(void) { return -ENXIO; } #endif +int xen_swiotlb_fixup(void *buf, unsigned long nslabs); +int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order, + unsigned int address_bits, + dma_addr_t *dma_handle); +void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order); + #endif /* _ASM_X86_SWIOTLB_XEN_H */ |