diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/include/asm/kvm_host.h | 4 | ||||
| -rw-r--r-- | arch/ia64/kvm/Makefile | 2 | ||||
| -rw-r--r-- | arch/ia64/kvm/kvm-ia64.c | 8 | ||||
| -rw-r--r-- | arch/ia64/kvm/kvm_lib.c | 15 | ||||
| -rw-r--r-- | arch/ia64/kvm/vmm.c | 26 |
5 files changed, 54 insertions, 1 deletions
diff --git a/arch/ia64/include/asm/kvm_host.h b/arch/ia64/include/asm/kvm_host.h index 678e2646a50..0560f3fae53 100644 --- a/arch/ia64/include/asm/kvm_host.h +++ b/arch/ia64/include/asm/kvm_host.h @@ -39,6 +39,7 @@ #define EXIT_REASON_EXTERNAL_INTERRUPT 6 #define EXIT_REASON_IPI 7 #define EXIT_REASON_PTC_G 8 +#define EXIT_REASON_DEBUG 20 /*Define vmm address space and vm data space.*/ #define KVM_VMM_SIZE (__IA64_UL_CONST(16)<<20) @@ -126,6 +127,8 @@ KVM_MEM_DIRTY_LOG_SIZE) / sizeof(struct kvm_vcpu_data) #define KVM_MAX_MEM_SIZE (KVM_P2M_SIZE >> 3 << PAGE_SHIFT) +#define VMM_LOG_LEN 256 + #include <linux/types.h> #include <linux/mm.h> #include <linux/kvm.h> @@ -437,6 +440,7 @@ struct kvm_vcpu_arch { unsigned long opcode; unsigned long cause; + char log_buf[VMM_LOG_LEN]; union context host; union context guest; }; diff --git a/arch/ia64/kvm/Makefile b/arch/ia64/kvm/Makefile index 92cef66ca26..76464dc312e 100644 --- a/arch/ia64/kvm/Makefile +++ b/arch/ia64/kvm/Makefile @@ -60,7 +60,7 @@ obj-$(CONFIG_KVM) += kvm.o CFLAGS_vcpu.o += -mfixed-range=f2-f5,f12-f127 kvm-intel-objs = vmm.o vmm_ivt.o trampoline.o vcpu.o optvfault.o mmio.o \ - vtlb.o process.o + vtlb.o process.o kvm_lib.o #Add link memcpy and memset to avoid possible structure assignment error kvm-intel-objs += memcpy.o memset.o obj-$(CONFIG_KVM_INTEL) += kvm-intel.o diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 70eb829767f..b4d24e2cce4 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -474,6 +474,13 @@ static int handle_external_interrupt(struct kvm_vcpu *vcpu, return 1; } +static int handle_vcpu_debug(struct kvm_vcpu *vcpu, + struct kvm_run *kvm_run) +{ + printk("VMM: %s", vcpu->arch.log_buf); + return 1; +} + static int (*kvm_vti_exit_handlers[])(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) = { [EXIT_REASON_VM_PANIC] = handle_vm_error, @@ -485,6 +492,7 @@ static int (*kvm_vti_exit_handlers[])(struct kvm_vcpu *vcpu, [EXIT_REASON_EXTERNAL_INTERRUPT] = handle_external_interrupt, [EXIT_REASON_IPI] = handle_ipi, [EXIT_REASON_PTC_G] = handle_global_purge, + [EXIT_REASON_DEBUG] = handle_vcpu_debug, }; diff --git a/arch/ia64/kvm/kvm_lib.c b/arch/ia64/kvm/kvm_lib.c new file mode 100644 index 00000000000..a85cb611ecd --- /dev/null +++ b/arch/ia64/kvm/kvm_lib.c @@ -0,0 +1,15 @@ +/* + * kvm_lib.c: Compile some libraries for kvm-intel module. + * + * Just include kernel's library, and disable symbols export. + * Copyright (C) 2008, Intel Corporation. + * Xiantao Zhang (xiantao.zhang@intel.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ +#undef CONFIG_MODULES +#include "../../../lib/vsprintf.c" +#include "../../../lib/ctype.c" diff --git a/arch/ia64/kvm/vmm.c b/arch/ia64/kvm/vmm.c index 2275bf4e681..957779593c2 100644 --- a/arch/ia64/kvm/vmm.c +++ b/arch/ia64/kvm/vmm.c @@ -62,5 +62,31 @@ void vmm_spin_unlock(spinlock_t *lock) { _vmm_raw_spin_unlock(lock); } + +static void vcpu_debug_exit(struct kvm_vcpu *vcpu) +{ + struct exit_ctl_data *p = &vcpu->arch.exit_data; + long psr; + + local_irq_save(psr); + p->exit_reason = EXIT_REASON_DEBUG; + vmm_transition(vcpu); + local_irq_restore(psr); +} + +asmlinkage int printk(const char *fmt, ...) +{ + struct kvm_vcpu *vcpu = current_vcpu; + va_list args; + int r; + + memset(vcpu->arch.log_buf, 0, VMM_LOG_LEN); + va_start(args, fmt); + r = vsnprintf(vcpu->arch.log_buf, VMM_LOG_LEN, fmt, args); + va_end(args); + vcpu_debug_exit(vcpu); + return r; +} + module_init(kvm_vmm_init) module_exit(kvm_vmm_exit) |