Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 143 insertions, 0 deletions

diff --git a/include/xen/interface/hvm/hvm_vcpu.h b/include/xen/interface/hvm/hvm_vcpu.h
new file mode 100644
index 000000000..32ca83edd
--- /dev/null
+++ b/include/xen/interface/hvm/hvm_vcpu.h
@@ -0,0 +1,143 @@
+/*
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright (c) 2015, Roger Pau Monne <roger.pau@citrix.com>
+ */
+
+#ifndef __XEN_PUBLIC_HVM_HVM_VCPU_H__
+#define __XEN_PUBLIC_HVM_HVM_VCPU_H__
+
+#include "../xen.h"
+
+struct vcpu_hvm_x86_32 {
+    uint32_t eax;
+    uint32_t ecx;
+    uint32_t edx;
+    uint32_t ebx;
+    uint32_t esp;
+    uint32_t ebp;
+    uint32_t esi;
+    uint32_t edi;
+    uint32_t eip;
+    uint32_t eflags;
+
+    uint32_t cr0;
+    uint32_t cr3;
+    uint32_t cr4;
+
+    uint32_t pad1;
+
+    /*
+     * EFER should only be used to set the NXE bit (if required)
+     * when starting a vCPU in 32bit mode with paging enabled or
+     * to set the LME/LMA bits in order to start the vCPU in
+     * compatibility mode.
+     */
+    uint64_t efer;
+
+    uint32_t cs_base;
+    uint32_t ds_base;
+    uint32_t ss_base;
+    uint32_t es_base;
+    uint32_t tr_base;
+    uint32_t cs_limit;
+    uint32_t ds_limit;
+    uint32_t ss_limit;
+    uint32_t es_limit;
+    uint32_t tr_limit;
+    uint16_t cs_ar;
+    uint16_t ds_ar;
+    uint16_t ss_ar;
+    uint16_t es_ar;
+    uint16_t tr_ar;
+
+    uint16_t pad2[3];
+};
+
+/*
+ * The layout of the _ar fields of the segment registers is the
+ * following:
+ *
+ * Bits   [0,3]: type (bits 40-43).
+ * Bit        4: s    (descriptor type, bit 44).
+ * Bit    [5,6]: dpl  (descriptor privilege level, bits 45-46).
+ * Bit        7: p    (segment-present, bit 47).
+ * Bit        8: avl  (available for system software, bit 52).
+ * Bit        9: l    (64-bit code segment, bit 53).
+ * Bit       10: db   (meaning depends on the segment, bit 54).
+ * Bit       11: g    (granularity, bit 55)
+ * Bits [12,15]: unused, must be blank.
+ *
+ * A more complete description of the meaning of this fields can be
+ * obtained from the Intel SDM, Volume 3, section 3.4.5.
+ */
+
+struct vcpu_hvm_x86_64 {
+    uint64_t rax;
+    uint64_t rcx;
+    uint64_t rdx;
+    uint64_t rbx;
+    uint64_t rsp;
+    uint64_t rbp;
+    uint64_t rsi;
+    uint64_t rdi;
+    uint64_t rip;
+    uint64_t rflags;
+
+    uint64_t cr0;
+    uint64_t cr3;
+    uint64_t cr4;
+    uint64_t efer;
+
+    /*
+     * Using VCPU_HVM_MODE_64B implies that the vCPU is launched
+     * directly in long mode, so the cached parts of the segment
+     * registers get set to match that environment.
+     *
+     * If the user wants to launch the vCPU in compatibility mode
+     * the 32-bit structure should be used instead.
+     */
+};
+
+struct vcpu_hvm_context {
+#define VCPU_HVM_MODE_32B 0  /* 32bit fields of the structure will be used. */
+#define VCPU_HVM_MODE_64B 1  /* 64bit fields of the structure will be used. */
+    uint32_t mode;
+
+    uint32_t pad;
+
+    /* CPU registers. */
+    union {
+        struct vcpu_hvm_x86_32 x86_32;
+        struct vcpu_hvm_x86_64 x86_64;
+    } cpu_regs;
+};
+typedef struct vcpu_hvm_context vcpu_hvm_context_t;
+
+#endif /* __XEN_PUBLIC_HVM_HVM_VCPU_H__ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */