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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a73a9599e0
When in kernel mode there are 4 additional registers available that are simple data storage. Instead of exiting to the hypervisor to read and write those, we can just share them with the guest using the page. This patch converts all users of the current field to the shared page. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright IBM Corp. 2008
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*
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* Authors: Hollis Blanchard <hollisb@us.ibm.com>
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*/
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#ifndef __POWERPC_KVM_PARA_H__
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#define __POWERPC_KVM_PARA_H__
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#include <linux/types.h>
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struct kvm_vcpu_arch_shared {
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__u64 sprg0;
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__u64 sprg1;
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__u64 sprg2;
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__u64 sprg3;
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__u64 srr0;
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__u64 srr1;
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__u64 dar;
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__u64 msr;
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__u32 dsisr;
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};
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#ifdef __KERNEL__
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static inline int kvm_para_available(void)
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{
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return 0;
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}
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static inline unsigned int kvm_arch_para_features(void)
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{
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return 0;
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}
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#endif /* __KERNEL__ */
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#endif /* __POWERPC_KVM_PARA_H__ */
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