From 24a9c293a8201b90207acc645a5cb6307f904b6c Mon Sep 17 00:00:00 2001 From: bellard Date: Fri, 30 May 2008 20:48:25 +0000 Subject: [PATCH] kqemu API change - allow use of kqemu with 32 bit QEMU on a 64 bit host git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4628 c046a42c-6fe2-441c-8c8c-71466251a162 --- configure | 2 +- exec-all.h | 6 ++ exec.c | 7 ++ kqemu.c | 255 ++++++++++++++++++++++++++++++++++-------------- kqemu.h | 118 +++++++++++++--------- target-i386/op_helper.c | 32 +++--- 6 files changed, 285 insertions(+), 135 deletions(-) diff --git a/configure b/configure index 8eec675..4a4ba36 100755 --- a/configure +++ b/configure @@ -1222,7 +1222,7 @@ case "$target_cpu" in echo "TARGET_ARCH=i386" >> $config_mak echo "#define TARGET_ARCH \"i386\"" >> $config_h echo "#define TARGET_I386 1" >> $config_h - if test $kqemu = "yes" -a "$target_softmmu" = "yes" -a $cpu = "i386" + if test $kqemu = "yes" -a "$target_softmmu" = "yes" then echo "#define USE_KQEMU 1" >> $config_h fi diff --git a/exec-all.h b/exec-all.h index eaf7c40..1f5906c 100644 --- a/exec-all.h +++ b/exec-all.h @@ -563,15 +563,21 @@ static inline target_ulong get_phys_addr_code(CPUState *env1, target_ulong addr) #ifdef USE_KQEMU #define KQEMU_MODIFY_PAGE_MASK (0xff & ~(VGA_DIRTY_FLAG | CODE_DIRTY_FLAG)) +#define MSR_QPI_COMMBASE 0xfabe0010 + int kqemu_init(CPUState *env); int kqemu_cpu_exec(CPUState *env); void kqemu_flush_page(CPUState *env, target_ulong addr); void kqemu_flush(CPUState *env, int global); void kqemu_set_notdirty(CPUState *env, ram_addr_t ram_addr); void kqemu_modify_page(CPUState *env, ram_addr_t ram_addr); +void kqemu_set_phys_mem(uint64_t start_addr, ram_addr_t size, + ram_addr_t phys_offset); void kqemu_cpu_interrupt(CPUState *env); void kqemu_record_dump(void); +extern uint32_t kqemu_comm_base; + static inline int kqemu_is_ok(CPUState *env) { return(env->kqemu_enabled && diff --git a/exec.c b/exec.c index 7a88901..544e111 100644 --- a/exec.c +++ b/exec.c @@ -2139,6 +2139,13 @@ void cpu_register_physical_memory(target_phys_addr_t start_addr, ram_addr_t orig_size = size; void *subpage; +#ifdef USE_KQEMU + /* XXX: should not depend on cpu context */ + env = first_cpu; + if (env->kqemu_enabled) { + kqemu_set_phys_mem(start_addr, size, phys_offset); + } +#endif size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; end_addr = start_addr + (target_phys_addr_t)size; for(addr = start_addr; addr != end_addr; addr += TARGET_PAGE_SIZE) { diff --git a/kqemu.c b/kqemu.c index 88592ee..540aa3c 100644 --- a/kqemu.c +++ b/kqemu.c @@ -1,7 +1,7 @@ /* * KQEMU support * - * Copyright (c) 2005 Fabrice Bellard + * Copyright (c) 2005-2008 Fabrice Bellard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -51,24 +51,14 @@ #include #include "kqemu.h" -/* compatibility stuff */ -#ifndef KQEMU_RET_SYSCALL -#define KQEMU_RET_SYSCALL 0x0300 /* syscall insn */ -#endif -#ifndef KQEMU_MAX_RAM_PAGES_TO_UPDATE -#define KQEMU_MAX_RAM_PAGES_TO_UPDATE 512 -#define KQEMU_RAM_PAGES_UPDATE_ALL (KQEMU_MAX_RAM_PAGES_TO_UPDATE + 1) -#endif -#ifndef KQEMU_MAX_MODIFIED_RAM_PAGES -#define KQEMU_MAX_MODIFIED_RAM_PAGES 512 -#endif - #ifdef _WIN32 #define KQEMU_DEVICE "\\\\.\\kqemu" #else #define KQEMU_DEVICE "/dev/kqemu" #endif +static void qpi_init(void); + #ifdef _WIN32 #define KQEMU_INVALID_FD INVALID_HANDLE_VALUE HANDLE kqemu_fd = KQEMU_INVALID_FD; @@ -84,14 +74,15 @@ int kqemu_fd = KQEMU_INVALID_FD; 2 = kernel kqemu */ int kqemu_allowed = 1; -unsigned long *pages_to_flush; +uint64_t *pages_to_flush; unsigned int nb_pages_to_flush; -unsigned long *ram_pages_to_update; +uint64_t *ram_pages_to_update; unsigned int nb_ram_pages_to_update; -unsigned long *modified_ram_pages; +uint64_t *modified_ram_pages; unsigned int nb_modified_ram_pages; uint8_t *modified_ram_pages_table; -extern uint32_t **l1_phys_map; +int qpi_io_memory; +uint32_t kqemu_comm_base; /* physical address of the QPI communication page */ #define cpuid(index, eax, ebx, ecx, edx) \ asm volatile ("cpuid" \ @@ -161,7 +152,7 @@ static void kqemu_update_cpuid(CPUState *env) int kqemu_init(CPUState *env) { - struct kqemu_init init; + struct kqemu_init kinit; int ret, version; #ifdef _WIN32 DWORD temp; @@ -197,39 +188,35 @@ int kqemu_init(CPUState *env) } pages_to_flush = qemu_vmalloc(KQEMU_MAX_PAGES_TO_FLUSH * - sizeof(unsigned long)); + sizeof(uint64_t)); if (!pages_to_flush) goto fail; ram_pages_to_update = qemu_vmalloc(KQEMU_MAX_RAM_PAGES_TO_UPDATE * - sizeof(unsigned long)); + sizeof(uint64_t)); if (!ram_pages_to_update) goto fail; modified_ram_pages = qemu_vmalloc(KQEMU_MAX_MODIFIED_RAM_PAGES * - sizeof(unsigned long)); + sizeof(uint64_t)); if (!modified_ram_pages) goto fail; modified_ram_pages_table = qemu_mallocz(phys_ram_size >> TARGET_PAGE_BITS); if (!modified_ram_pages_table) goto fail; - init.ram_base = phys_ram_base; - init.ram_size = phys_ram_size; - init.ram_dirty = phys_ram_dirty; - init.phys_to_ram_map = l1_phys_map; - init.pages_to_flush = pages_to_flush; -#if KQEMU_VERSION >= 0x010200 - init.ram_pages_to_update = ram_pages_to_update; -#endif -#if KQEMU_VERSION >= 0x010300 - init.modified_ram_pages = modified_ram_pages; -#endif + memset(&kinit, 0, sizeof(kinit)); /* set the paddings to zero */ + kinit.ram_base = phys_ram_base; + kinit.ram_size = phys_ram_size; + kinit.ram_dirty = phys_ram_dirty; + kinit.pages_to_flush = pages_to_flush; + kinit.ram_pages_to_update = ram_pages_to_update; + kinit.modified_ram_pages = modified_ram_pages; #ifdef _WIN32 - ret = DeviceIoControl(kqemu_fd, KQEMU_INIT, &init, sizeof(init), + ret = DeviceIoControl(kqemu_fd, KQEMU_INIT, &kinit, sizeof(kinit), NULL, 0, &temp, NULL) == TRUE ? 0 : -1; #else - ret = ioctl(kqemu_fd, KQEMU_INIT, &init); + ret = ioctl(kqemu_fd, KQEMU_INIT, &kinit); #endif if (ret < 0) { fprintf(stderr, "Error %d while initializing QEMU acceleration layer - disabling it for now\n", ret); @@ -242,6 +229,8 @@ int kqemu_init(CPUState *env) env->kqemu_enabled = kqemu_allowed; nb_pages_to_flush = 0; nb_ram_pages_to_update = 0; + + qpi_init(); return 0; } @@ -272,7 +261,8 @@ void kqemu_set_notdirty(CPUState *env, ram_addr_t ram_addr) { #ifdef DEBUG if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "kqemu_set_notdirty: addr=%08lx\n", ram_addr); + fprintf(logfile, "kqemu_set_notdirty: addr=%08lx\n", + (unsigned long)ram_addr); } #endif /* we only track transitions to dirty state */ @@ -327,6 +317,51 @@ void kqemu_modify_page(CPUState *env, ram_addr_t ram_addr) } } +void kqemu_set_phys_mem(uint64_t start_addr, ram_addr_t size, + ram_addr_t phys_offset) +{ + struct kqemu_phys_mem kphys_mem1, *kphys_mem = &kphys_mem1; + uint64_t end; + int ret, io_index; + + end = (start_addr + size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; + start_addr &= TARGET_PAGE_MASK; + kphys_mem->phys_addr = start_addr; + kphys_mem->size = end - start_addr; + kphys_mem->ram_addr = phys_offset & TARGET_PAGE_MASK; + io_index = phys_offset & ~TARGET_PAGE_MASK; + switch(io_index) { + case IO_MEM_RAM: + kphys_mem->io_index = KQEMU_IO_MEM_RAM; + break; + case IO_MEM_ROM: + kphys_mem->io_index = KQEMU_IO_MEM_ROM; + break; + default: + if (qpi_io_memory == io_index) { + kphys_mem->io_index = KQEMU_IO_MEM_COMM; + } else { + kphys_mem->io_index = KQEMU_IO_MEM_UNASSIGNED; + } + break; + } +#ifdef _WIN32 + { + DWORD temp; + ret = DeviceIoControl(kqemu_fd, KQEMU_SET_PHYS_MEM, + kphys_mem, sizeof(*kphys_mem), + NULL, 0, &temp, NULL) == TRUE ? 0 : -1; + } +#else + ret = ioctl(kqemu_fd, KQEMU_SET_PHYS_MEM, kphys_mem); +#endif + if (ret < 0) { + fprintf(stderr, "kqemu: KQEMU_SET_PHYS_PAGE error=%d: start_addr=0x%016" PRIx64 " size=0x%08lx phys_offset=0x%08lx\n", + ret, start_addr, + (unsigned long)size, (unsigned long)phys_offset); + } +} + struct fpstate { uint16_t fpuc; uint16_t dummy1; @@ -474,7 +509,7 @@ static int do_syscall(CPUState *env, int selector; selector = (env->star >> 32) & 0xffff; -#ifdef __x86_64__ +#ifdef TARGET_X86_64 if (env->hflags & HF_LMA_MASK) { int code64; @@ -631,6 +666,24 @@ void kqemu_record_dump(void) } #endif +static inline void kqemu_load_seg(struct kqemu_segment_cache *ksc, + const SegmentCache *sc) +{ + ksc->selector = sc->selector; + ksc->flags = sc->flags; + ksc->limit = sc->limit; + ksc->base = sc->base; +} + +static inline void kqemu_save_seg(SegmentCache *sc, + const struct kqemu_segment_cache *ksc) +{ + sc->selector = ksc->selector; + sc->flags = ksc->flags; + sc->limit = ksc->limit; + sc->base = ksc->base; +} + int kqemu_cpu_exec(CPUState *env) { struct kqemu_cpu_state kcpu_state, *kenv = &kcpu_state; @@ -638,7 +691,6 @@ int kqemu_cpu_exec(CPUState *env) #ifdef CONFIG_PROFILER int64_t ti; #endif - #ifdef _WIN32 DWORD temp; #endif @@ -652,35 +704,33 @@ int kqemu_cpu_exec(CPUState *env) cpu_dump_state(env, logfile, fprintf, 0); } #endif - memcpy(kenv->regs, env->regs, sizeof(kenv->regs)); + for(i = 0; i < CPU_NB_REGS; i++) + kenv->regs[i] = env->regs[i]; kenv->eip = env->eip; kenv->eflags = env->eflags; - memcpy(&kenv->segs, &env->segs, sizeof(env->segs)); - memcpy(&kenv->ldt, &env->ldt, sizeof(env->ldt)); - memcpy(&kenv->tr, &env->tr, sizeof(env->tr)); - memcpy(&kenv->gdt, &env->gdt, sizeof(env->gdt)); - memcpy(&kenv->idt, &env->idt, sizeof(env->idt)); + for(i = 0; i < 6; i++) + kqemu_load_seg(&kenv->segs[i], &env->segs[i]); + kqemu_load_seg(&kenv->ldt, &env->ldt); + kqemu_load_seg(&kenv->tr, &env->tr); + kqemu_load_seg(&kenv->gdt, &env->gdt); + kqemu_load_seg(&kenv->idt, &env->idt); kenv->cr0 = env->cr[0]; kenv->cr2 = env->cr[2]; kenv->cr3 = env->cr[3]; kenv->cr4 = env->cr[4]; kenv->a20_mask = env->a20_mask; -#if KQEMU_VERSION >= 0x010100 kenv->efer = env->efer; -#endif -#if KQEMU_VERSION >= 0x010300 kenv->tsc_offset = 0; kenv->star = env->star; kenv->sysenter_cs = env->sysenter_cs; kenv->sysenter_esp = env->sysenter_esp; kenv->sysenter_eip = env->sysenter_eip; -#ifdef __x86_64__ +#ifdef TARGET_X86_64 kenv->lstar = env->lstar; kenv->cstar = env->cstar; kenv->fmask = env->fmask; kenv->kernelgsbase = env->kernelgsbase; #endif -#endif if (env->dr[7] & 0xff) { kenv->dr7 = env->dr[7]; kenv->dr0 = env->dr[0]; @@ -694,15 +744,11 @@ int kqemu_cpu_exec(CPUState *env) cpl = (env->hflags & HF_CPL_MASK); kenv->cpl = cpl; kenv->nb_pages_to_flush = nb_pages_to_flush; -#if KQEMU_VERSION >= 0x010200 kenv->user_only = (env->kqemu_enabled == 1); kenv->nb_ram_pages_to_update = nb_ram_pages_to_update; -#endif nb_ram_pages_to_update = 0; - -#if KQEMU_VERSION >= 0x010300 kenv->nb_modified_ram_pages = nb_modified_ram_pages; -#endif + kqemu_reset_modified_ram_pages(); if (env->cpuid_features & CPUID_FXSR) @@ -720,41 +766,30 @@ int kqemu_cpu_exec(CPUState *env) ret = -1; } #else -#if KQEMU_VERSION >= 0x010100 ioctl(kqemu_fd, KQEMU_EXEC, kenv); ret = kenv->retval; -#else - ret = ioctl(kqemu_fd, KQEMU_EXEC, kenv); -#endif #endif if (env->cpuid_features & CPUID_FXSR) save_native_fp_fxsave(env); else save_native_fp_fsave(env); - memcpy(env->regs, kenv->regs, sizeof(env->regs)); + for(i = 0; i < CPU_NB_REGS; i++) + env->regs[i] = kenv->regs[i]; env->eip = kenv->eip; env->eflags = kenv->eflags; - memcpy(env->segs, kenv->segs, sizeof(env->segs)); + for(i = 0; i < 6; i++) + kqemu_save_seg(&env->segs[i], &kenv->segs[i]); cpu_x86_set_cpl(env, kenv->cpl); - memcpy(&env->ldt, &kenv->ldt, sizeof(env->ldt)); -#if 0 - /* no need to restore that */ - memcpy(env->tr, kenv->tr, sizeof(env->tr)); - memcpy(env->gdt, kenv->gdt, sizeof(env->gdt)); - memcpy(env->idt, kenv->idt, sizeof(env->idt)); - env->a20_mask = kenv->a20_mask; -#endif + kqemu_save_seg(&env->ldt, &kenv->ldt); env->cr[0] = kenv->cr0; env->cr[4] = kenv->cr4; env->cr[3] = kenv->cr3; env->cr[2] = kenv->cr2; env->dr[6] = kenv->dr6; -#if KQEMU_VERSION >= 0x010300 -#ifdef __x86_64__ +#ifdef TARGET_X86_64 env->kernelgsbase = kenv->kernelgsbase; #endif -#endif /* flush pages as indicated by kqemu */ if (kenv->nb_pages_to_flush >= KQEMU_FLUSH_ALL) { @@ -771,13 +806,10 @@ int kqemu_cpu_exec(CPUState *env) kqemu_exec_count++; #endif -#if KQEMU_VERSION >= 0x010200 if (kenv->nb_ram_pages_to_update > 0) { cpu_tlb_update_dirty(env); } -#endif -#if KQEMU_VERSION >= 0x010300 if (kenv->nb_modified_ram_pages > 0) { for(i = 0; i < kenv->nb_modified_ram_pages; i++) { unsigned long addr; @@ -785,7 +817,6 @@ int kqemu_cpu_exec(CPUState *env) tb_invalidate_phys_page_range(addr, addr + TARGET_PAGE_SIZE, 0); } } -#endif /* restore the hidden flags */ { @@ -905,11 +936,85 @@ int kqemu_cpu_exec(CPUState *env) void kqemu_cpu_interrupt(CPUState *env) { -#if defined(_WIN32) && KQEMU_VERSION >= 0x010101 +#if defined(_WIN32) /* cancelling the I/O request causes KQEMU to finish executing the current block and successfully returning. */ CancelIo(kqemu_fd); #endif } +/* + QEMU paravirtualization interface. The current interface only + allows to modify the IF and IOPL flags when running in + kqemu. + + At this point it is not very satisfactory. I leave it for reference + as it adds little complexity. +*/ + +#define QPI_COMM_PAGE_PHYS_ADDR 0xff000000 + +static uint32_t qpi_mem_readb(void *opaque, target_phys_addr_t addr) +{ + return 0; +} + +static uint32_t qpi_mem_readw(void *opaque, target_phys_addr_t addr) +{ + return 0; +} + +static void qpi_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) +{ +} + +static void qpi_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val) +{ +} + +static uint32_t qpi_mem_readl(void *opaque, target_phys_addr_t addr) +{ + CPUState *env; + + env = cpu_single_env; + if (!env) + return 0; + return env->eflags & (IF_MASK | IOPL_MASK); +} + +/* Note: after writing to this address, the guest code must make sure + it is exiting the current TB. pushf/popf can be used for that + purpose. */ +static void qpi_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val) +{ + CPUState *env; + + env = cpu_single_env; + if (!env) + return; + env->eflags = (env->eflags & ~(IF_MASK | IOPL_MASK)) | + (val & (IF_MASK | IOPL_MASK)); +} + +static CPUReadMemoryFunc *qpi_mem_read[3] = { + qpi_mem_readb, + qpi_mem_readw, + qpi_mem_readl, +}; + +static CPUWriteMemoryFunc *qpi_mem_write[3] = { + qpi_mem_writeb, + qpi_mem_writew, + qpi_mem_writel, +}; + +static void qpi_init(void) +{ + kqemu_comm_base = 0xff000000 | 1; + qpi_io_memory = cpu_register_io_memory(0, + qpi_mem_read, + qpi_mem_write, NULL); + cpu_register_physical_memory(kqemu_comm_base & ~0xfff, + 0x1000, qpi_io_memory); +} #endif diff --git a/kqemu.h b/kqemu.h index 7b43057..ed25c75 100644 --- a/kqemu.h +++ b/kqemu.h @@ -1,8 +1,8 @@ /* * KQEMU header - * - * Copyright (c) 2004-2006 Fabrice Bellard - * + * + * Copyright (c) 2004-2008 Fabrice Bellard + * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights @@ -24,25 +24,27 @@ #ifndef KQEMU_H #define KQEMU_H -#define KQEMU_VERSION 0x010300 +#if defined(__i386__) +#define KQEMU_PAD32(x) x +#else +#define KQEMU_PAD32(x) +#endif + +#define KQEMU_VERSION 0x010400 struct kqemu_segment_cache { - uint32_t selector; - unsigned long base; - uint32_t limit; + uint16_t selector; + uint16_t padding1; uint32_t flags; + uint64_t base; + uint32_t limit; + uint32_t padding2; }; struct kqemu_cpu_state { -#ifdef __x86_64__ - unsigned long regs[16]; -#else - unsigned long regs[8]; -#endif - unsigned long eip; - unsigned long eflags; - - uint32_t dummy0, dummy1, dumm2, dummy3, dummy4; + uint64_t regs[16]; + uint64_t eip; + uint64_t eflags; struct kqemu_segment_cache segs[6]; /* selector values */ struct kqemu_segment_cache ldt; @@ -50,63 +52,81 @@ struct kqemu_cpu_state { struct kqemu_segment_cache gdt; /* only base and limit are used */ struct kqemu_segment_cache idt; /* only base and limit are used */ - unsigned long cr0; - unsigned long dummy5; - unsigned long cr2; - unsigned long cr3; - unsigned long cr4; - uint32_t a20_mask; + uint64_t cr0; + uint64_t cr2; + uint64_t cr3; + uint64_t cr4; + uint64_t a20_mask; /* sysenter registers */ - uint32_t sysenter_cs; - uint32_t sysenter_esp; - uint32_t sysenter_eip; - uint64_t efer __attribute__((aligned(8))); + uint64_t sysenter_cs; + uint64_t sysenter_esp; + uint64_t sysenter_eip; + uint64_t efer; uint64_t star; -#ifdef __x86_64__ - unsigned long lstar; - unsigned long cstar; - unsigned long fmask; - unsigned long kernelgsbase; -#endif + + uint64_t lstar; + uint64_t cstar; + uint64_t fmask; + uint64_t kernelgsbase; + uint64_t tsc_offset; - unsigned long dr0; - unsigned long dr1; - unsigned long dr2; - unsigned long dr3; - unsigned long dr6; - unsigned long dr7; + uint64_t dr0; + uint64_t dr1; + uint64_t dr2; + uint64_t dr3; + uint64_t dr6; + uint64_t dr7; uint8_t cpl; uint8_t user_only; + uint16_t padding1; uint32_t error_code; /* error_code when exiting with an exception */ - unsigned long next_eip; /* next eip value when exiting with an interrupt */ - unsigned int nb_pages_to_flush; /* number of pages to flush, + uint64_t next_eip; /* next eip value when exiting with an interrupt */ + uint32_t nb_pages_to_flush; /* number of pages to flush, KQEMU_FLUSH_ALL means full flush */ #define KQEMU_MAX_PAGES_TO_FLUSH 512 #define KQEMU_FLUSH_ALL (KQEMU_MAX_PAGES_TO_FLUSH + 1) - long retval; + int32_t retval; /* number of ram_dirty entries to update */ - unsigned int nb_ram_pages_to_update; + uint32_t nb_ram_pages_to_update; #define KQEMU_MAX_RAM_PAGES_TO_UPDATE 512 #define KQEMU_RAM_PAGES_UPDATE_ALL (KQEMU_MAX_RAM_PAGES_TO_UPDATE + 1) #define KQEMU_MAX_MODIFIED_RAM_PAGES 512 - unsigned int nb_modified_ram_pages; + uint32_t nb_modified_ram_pages; }; struct kqemu_init { uint8_t *ram_base; /* must be page aligned */ - unsigned long ram_size; /* must be multiple of 4 KB */ + KQEMU_PAD32(uint32_t padding1;) + uint64_t ram_size; /* must be multiple of 4 KB */ uint8_t *ram_dirty; /* must be page aligned */ - uint32_t **phys_to_ram_map; /* must be page aligned */ - unsigned long *pages_to_flush; /* must be page aligned */ - unsigned long *ram_pages_to_update; /* must be page aligned */ - unsigned long *modified_ram_pages; /* must be page aligned */ + KQEMU_PAD32(uint32_t padding2;) + uint64_t *pages_to_flush; /* must be page aligned */ + KQEMU_PAD32(uint32_t padding4;) + uint64_t *ram_pages_to_update; /* must be page aligned */ + KQEMU_PAD32(uint32_t padding5;) + uint64_t *modified_ram_pages; /* must be page aligned */ + KQEMU_PAD32(uint32_t padding6;) +}; + +#define KQEMU_IO_MEM_RAM 0 +#define KQEMU_IO_MEM_ROM 1 +#define KQEMU_IO_MEM_COMM 2 /* kqemu communication page */ +#define KQEMU_IO_MEM_UNASSIGNED 3 /* any device: return to application */ + +struct kqemu_phys_mem { + uint64_t phys_addr; /* physical address range: phys_addr, + phys_addr + size */ + uint64_t size; + uint64_t ram_addr; /* corresponding ram address */ + uint32_t io_index; /* memory type: see KQEMU_IO_MEM_xxx */ + uint32_t padding1; }; #define KQEMU_RET_ABORT (-1) @@ -122,11 +142,13 @@ struct kqemu_init { #define KQEMU_INIT CTL_CODE(FILE_DEVICE_UNKNOWN, 2, METHOD_BUFFERED, FILE_WRITE_ACCESS) #define KQEMU_GET_VERSION CTL_CODE(FILE_DEVICE_UNKNOWN, 3, METHOD_BUFFERED, FILE_READ_ACCESS) #define KQEMU_MODIFY_RAM_PAGES CTL_CODE(FILE_DEVICE_UNKNOWN, 4, METHOD_BUFFERED, FILE_WRITE_ACCESS) +#define KQEMU_SET_PHYS_MEM CTL_CODE(FILE_DEVICE_UNKNOWN, 5, METHOD_BUFFERED, FILE_WRITE_ACCESS) #else #define KQEMU_EXEC _IOWR('q', 1, struct kqemu_cpu_state) #define KQEMU_INIT _IOW('q', 2, struct kqemu_init) #define KQEMU_GET_VERSION _IOR('q', 3, int) #define KQEMU_MODIFY_RAM_PAGES _IOW('q', 4, int) +#define KQEMU_SET_PHYS_MEM _IOW('q', 5, struct kqemu_phys_mem) #endif #endif /* KQEMU_H */ diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c index bb76618..5e78494 100644 --- a/target-i386/op_helper.c +++ b/target-i386/op_helper.c @@ -1950,20 +1950,21 @@ void helper_cpuid(void) case 0x80000008: /* virtual & phys address size in low 2 bytes. */ /* XXX: This value must match the one used in the MMU code. */ -#if defined(TARGET_X86_64) -# if defined(USE_KQEMU) - EAX = 0x00003020; /* 48 bits virtual, 32 bits physical */ -# else + if (env->cpuid_ext2_features & CPUID_EXT2_LM) { + /* 64 bit processor */ +#if defined(USE_KQEMU) + EAX = 0x00003020; /* 48 bits virtual, 32 bits physical */ +#else /* XXX: The physical address space is limited to 42 bits in exec.c. */ - EAX = 0x00003028; /* 48 bits virtual, 40 bits physical */ -# endif + EAX = 0x00003028; /* 48 bits virtual, 40 bits physical */ +#endif + } else { +#if defined(USE_KQEMU) + EAX = 0x00000020; /* 32 bits physical */ #else -# if defined(USE_KQEMU) - EAX = 0x00000020; /* 32 bits physical */ -# else - EAX = 0x00000024; /* 36 bits physical */ -# endif + EAX = 0x00000024; /* 36 bits physical */ #endif + } EBX = 0; ECX = 0; EDX = 0; @@ -3158,6 +3159,15 @@ void helper_rdmsr(void) val = env->kernelgsbase; break; #endif +#ifdef USE_KQEMU + case MSR_QPI_COMMBASE: + if (env->kqemu_enabled) { + val = kqemu_comm_base; + } else { + val = 0; + } + break; +#endif default: /* XXX: exception ? */ val = 0; -- 2.7.4