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author | Yang Zhang <yang.z.zhang@Intel.com> | 2013-04-18 11:34:49 +0200 |
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committer | Jan Beulich <jbeulich@suse.com> | 2013-04-18 11:34:49 +0200 |
commit | d7dafa375bc13772e2e3274d975d544af4208939 (patch) | |
tree | cbcacbdd2d1e50965f5ce5cc729261fbe49ed3d8 /xen/include/asm-x86/hvm | |
parent | 1c0ac49b1d6c3d54fc1f75661742a988ca7cf255 (diff) | |
download | xen-d7dafa375bc13772e2e3274d975d544af4208939.tar.gz xen-d7dafa375bc13772e2e3274d975d544af4208939.tar.bz2 xen-d7dafa375bc13772e2e3274d975d544af4208939.zip |
VMX: Add posted interrupt supporting
Add the supporting of using posted interrupt to deliver interrupt.
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Reviewed-by: Jun Nakajima <jun.nakajima@intel.com>
Acked-by: Keir Fraser <keir@xen.org>
Acked-by: George Dunlap <george.dunlap@eu.citrix.com> (from a release perspective)
Diffstat (limited to 'xen/include/asm-x86/hvm')
-rw-r--r-- | xen/include/asm-x86/hvm/hvm.h | 2 | ||||
-rw-r--r-- | xen/include/asm-x86/hvm/vlapic.h | 15 | ||||
-rw-r--r-- | xen/include/asm-x86/hvm/vmx/vmx.h | 25 |
3 files changed, 42 insertions, 0 deletions
diff --git a/xen/include/asm-x86/hvm/hvm.h b/xen/include/asm-x86/hvm/hvm.h index 2fa2ea5eed..85dc85baeb 100644 --- a/xen/include/asm-x86/hvm/hvm.h +++ b/xen/include/asm-x86/hvm/hvm.h @@ -184,6 +184,8 @@ struct hvm_function_table { void (*update_eoi_exit_bitmap)(struct vcpu *v, u8 vector, u8 trig); int (*virtual_intr_delivery_enabled)(void); void (*process_isr)(int isr, struct vcpu *v); + void (*deliver_posted_intr)(struct vcpu *v, u8 vector); + void (*sync_pir_to_irr)(struct vcpu *v); /*Walk nested p2m */ int (*nhvm_hap_walk_L1_p2m)(struct vcpu *v, paddr_t L2_gpa, diff --git a/xen/include/asm-x86/hvm/vlapic.h b/xen/include/asm-x86/hvm/vlapic.h index 101ef57e14..40fd3066e9 100644 --- a/xen/include/asm-x86/hvm/vlapic.h +++ b/xen/include/asm-x86/hvm/vlapic.h @@ -54,6 +54,21 @@ #define vlapic_x2apic_mode(vlapic) \ ((vlapic)->hw.apic_base_msr & MSR_IA32_APICBASE_EXTD) +/* + * Generic APIC bitmap vector update & search routines. + */ + +#define VEC_POS(v) ((v) % 32) +#define REG_POS(v) (((v) / 32) * 0x10) +#define vlapic_test_and_set_vector(vec, bitmap) \ + test_and_set_bit(VEC_POS(vec), (uint32_t *)((bitmap) + REG_POS(vec))) +#define vlapic_test_and_clear_vector(vec, bitmap) \ + test_and_clear_bit(VEC_POS(vec), (uint32_t *)((bitmap) + REG_POS(vec))) +#define vlapic_set_vector(vec, bitmap) \ + set_bit(VEC_POS(vec), (uint32_t *)((bitmap) + REG_POS(vec))) +#define vlapic_clear_vector(vec, bitmap) \ + clear_bit(VEC_POS(vec), (uint32_t *)((bitmap) + REG_POS(vec))) + struct vlapic { struct hvm_hw_lapic hw; struct hvm_hw_lapic_regs *regs; diff --git a/xen/include/asm-x86/hvm/vmx/vmx.h b/xen/include/asm-x86/hvm/vmx/vmx.h index 7efe0f3c16..c33b9f9a7e 100644 --- a/xen/include/asm-x86/hvm/vmx/vmx.h +++ b/xen/include/asm-x86/hvm/vmx/vmx.h @@ -99,6 +99,31 @@ void vmx_update_exception_bitmap(struct vcpu *v); void vmx_update_cpu_exec_control(struct vcpu *v); void vmx_update_secondary_exec_control(struct vcpu *v); +#define POSTED_INTR_ON 0 +static inline int pi_test_and_set_pir(int vector, struct pi_desc *pi_desc) +{ + return test_and_set_bit(vector, pi_desc->pir); +} + +static inline int pi_test_and_set_on(struct pi_desc *pi_desc) +{ + return test_and_set_bit(POSTED_INTR_ON, &pi_desc->control); +} + +static inline void pi_set_on(struct pi_desc *pi_desc) +{ + set_bit(POSTED_INTR_ON, &pi_desc->control); +} + +static inline int pi_test_and_clear_on(struct pi_desc *pi_desc) +{ + return test_and_clear_bit(POSTED_INTR_ON, &pi_desc->control); +} + +static inline unsigned long pi_get_pir(struct pi_desc *pi_desc, int group) +{ + return xchg(&pi_desc->pir[group], 0); +} /* * Exit Reasons |