[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v6 6/8] x86/hvm: Introduce hvm_save_mtrr_msr_one func
This is used to save data from a single instance. Signed-off-by: Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx> --- xen/arch/x86/hvm/mtrr.c | 52 +++++++++++++++++++++++++++---------------------- 1 file changed, 29 insertions(+), 23 deletions(-) diff --git a/xen/arch/x86/hvm/mtrr.c b/xen/arch/x86/hvm/mtrr.c index b721c63..d311031 100644 --- a/xen/arch/x86/hvm/mtrr.c +++ b/xen/arch/x86/hvm/mtrr.c @@ -666,36 +666,42 @@ int hvm_set_mem_pinned_cacheattr(struct domain *d, uint64_t gfn_start, return 0; } -static int hvm_save_mtrr_msr(struct domain *d, hvm_domain_context_t *h) +static void hvm_save_mtrr_msr_one(struct vcpu *v, struct hvm_hw_mtrr *hw_mtrr) { + struct mtrr_state *mtrr_state = &v->arch.hvm_vcpu.mtrr; int i; - struct vcpu *v; - struct hvm_hw_mtrr hw_mtrr; - struct mtrr_state *mtrr_state; - /* save mtrr&pat */ - for_each_vcpu(d, v) + + hvm_get_guest_pat(v, &hw_mtrr->msr_pat_cr); + + hw_mtrr->msr_mtrr_def_type = mtrr_state->def_type + | (mtrr_state->enabled << 10); + hw_mtrr->msr_mtrr_cap = mtrr_state->mtrr_cap; + + for ( i = 0; i < MTRR_VCNT; i++ ) { - mtrr_state = &v->arch.hvm_vcpu.mtrr; + /* save physbase */ + hw_mtrr->msr_mtrr_var[i*2] = + ((uint64_t*)mtrr_state->var_ranges)[i*2]; + /* save physmask */ + hw_mtrr->msr_mtrr_var[i*2+1] = + ((uint64_t*)mtrr_state->var_ranges)[i*2+1]; + } - hvm_get_guest_pat(v, &hw_mtrr.msr_pat_cr); + for ( i = 0; i < NUM_FIXED_MSR; i++ ) + hw_mtrr->msr_mtrr_fixed[i] = + ((uint64_t*)mtrr_state->fixed_ranges)[i]; - hw_mtrr.msr_mtrr_def_type = mtrr_state->def_type - | (mtrr_state->enabled << 10); - hw_mtrr.msr_mtrr_cap = mtrr_state->mtrr_cap; +} - for ( i = 0; i < MTRR_VCNT; i++ ) - { - /* save physbase */ - hw_mtrr.msr_mtrr_var[i*2] = - ((uint64_t*)mtrr_state->var_ranges)[i*2]; - /* save physmask */ - hw_mtrr.msr_mtrr_var[i*2+1] = - ((uint64_t*)mtrr_state->var_ranges)[i*2+1]; - } +static int hvm_save_mtrr_msr(struct domain *d, hvm_domain_context_t *h) +{ + struct vcpu *v; + struct hvm_hw_mtrr hw_mtrr; + /* save mtrr&pat */ - for ( i = 0; i < NUM_FIXED_MSR; i++ ) - hw_mtrr.msr_mtrr_fixed[i] = - ((uint64_t*)mtrr_state->fixed_ranges)[i]; + for_each_vcpu(d, v) + { + hvm_save_mtrr_msr_one(v, &hw_mtrr); if ( hvm_save_entry(MTRR, v->vcpu_id, h, &hw_mtrr) != 0 ) return 1; -- 2.7.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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