008e359c76
- After the guest becomes secure, when we handle a page fault of a page belonging to SVM in HV, send that page to UV via UV_PAGE_IN. - Whenever a page is unmapped on the HV side, inform UV via UV_PAGE_INVAL. - Ensure all those routines that walk the secondary page tables of the guest don't do so in case of secure VM. For secure guest, the active secondary page tables are in secure memory and the secondary page tables in HV are freed when guest becomes secure. Signed-off-by: Bharata B Rao <bharata@linux.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
38 lines
869 B
C
38 lines
869 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Ultravisor API.
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*
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* Copyright 2019, IBM Corporation.
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*
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*/
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#ifndef _ASM_POWERPC_ULTRAVISOR_API_H
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#define _ASM_POWERPC_ULTRAVISOR_API_H
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#include <asm/hvcall.h>
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/* Return codes */
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#define U_BUSY H_BUSY
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#define U_FUNCTION H_FUNCTION
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#define U_NOT_AVAILABLE H_NOT_AVAILABLE
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#define U_P2 H_P2
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#define U_P3 H_P3
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#define U_P4 H_P4
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#define U_P5 H_P5
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#define U_PARAMETER H_PARAMETER
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#define U_PERMISSION H_PERMISSION
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#define U_SUCCESS H_SUCCESS
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/* opcodes */
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#define UV_WRITE_PATE 0xF104
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#define UV_RETURN 0xF11C
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#define UV_ESM 0xF110
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#define UV_REGISTER_MEM_SLOT 0xF120
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#define UV_PAGE_IN 0xF128
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#define UV_PAGE_OUT 0xF12C
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#define UV_SHARE_PAGE 0xF130
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#define UV_UNSHARE_PAGE 0xF134
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#define UV_UNSHARE_ALL_PAGES 0xF140
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#define UV_PAGE_INVAL 0xF138
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#endif /* _ASM_POWERPC_ULTRAVISOR_API_H */
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