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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:51 +0000
commit6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch)
tree32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/kern/x86_64/xen
parentInitial commit. (diff)
downloadgrub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.tar.xz
grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.zip
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'grub-core/kern/x86_64/xen')
-rw-r--r--grub-core/kern/x86_64/xen/hypercall.S53
-rw-r--r--grub-core/kern/x86_64/xen/startup.S39
2 files changed, 92 insertions, 0 deletions
diff --git a/grub-core/kern/x86_64/xen/hypercall.S b/grub-core/kern/x86_64/xen/hypercall.S
new file mode 100644
index 0000000..9b04db6
--- /dev/null
+++ b/grub-core/kern/x86_64/xen/hypercall.S
@@ -0,0 +1,53 @@
+/* hypercall.S - wrappers for Xen hypercalls */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2011 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/symbol.h>
+#include <grub/xen.h>
+
+FUNCTION(grub_xen_sched_op)
+ movq $__HYPERVISOR_sched_op, %rax
+ syscall
+ ret
+
+FUNCTION(grub_xen_event_channel_op)
+ movq $__HYPERVISOR_event_channel_op, %rax
+ syscall
+ ret
+
+FUNCTION(grub_xen_update_va_mapping)
+ movq $__HYPERVISOR_update_va_mapping, %rax
+ syscall
+ ret
+
+FUNCTION(grub_xen_mmuext_op)
+ movq %rcx, %r10
+ movq $__HYPERVISOR_mmuext_op, %rax
+ syscall
+ ret
+
+FUNCTION(grub_xen_grant_table_op)
+ movq $__HYPERVISOR_grant_table_op, %rax
+ syscall
+ ret
+
+FUNCTION(grub_xen_mmu_update)
+ movq %rcx, %r10
+ movq $__HYPERVISOR_mmu_update, %rax
+ syscall
+ ret
diff --git a/grub-core/kern/x86_64/xen/startup.S b/grub-core/kern/x86_64/xen/startup.S
new file mode 100644
index 0000000..21a139f
--- /dev/null
+++ b/grub-core/kern/x86_64/xen/startup.S
@@ -0,0 +1,39 @@
+/* startup.S - bootstrap GRUB itself */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <grub/symbol.h>
+
+ .file "startup.S"
+ .text
+ .globl start, _start
+ .code64
+
+start:
+_start:
+ leaq LOCAL(stack_end), %rsp
+ movq %rsi, EXT_C(grub_xen_start_page_addr)(%rip)
+
+ andq $~0xf, %rsp
+ call EXT_C(grub_main)
+ /* Doesn't return. */
+
+ .bss
+ .space (1 << 22)
+LOCAL(stack_end):