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From 6f19a6f001e182b9716ea850ce39bb2545c558cb Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 7 Dec 2018 13:11:37 +0100
Subject: [PATCH 09/20] xen: Add basic hooks for PVH in current code
Add the hooks to current code needed for Xen PVH. They will be filled
with code later when the related functionality is being added.
loader/i386/linux.c needs to include machine/kernel.h now as it needs
to get GRUB_KERNEL_USE_RSDP_ADDR from there. This in turn requires to
add an empty kernel.h header for some i386 platforms (efi, coreboot,
ieee1275, xen) and for x86_64 efi.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Hans van Kranenburg <hans@knorrie.org>
(cherry picked from commit 0b3e4eb2d2e1875e6045e838962f769f2ce161dd)
---
grub-core/Makefile.am | 6 +++++
grub-core/kern/i386/xen/pvh.c | 37 +++++++++++++++++++++++++++
grub-core/kern/i386/xen/startup_pvh.S | 29 +++++++++++++++++++++
grub-core/kern/xen/init.c | 4 +++
grub-core/loader/i386/linux.c | 1 +
include/grub/i386/coreboot/kernel.h | 0
include/grub/i386/efi/kernel.h | 0
include/grub/i386/ieee1275/kernel.h | 0
include/grub/i386/xen/kernel.h | 0
include/grub/i386/xen_pvh/kernel.h | 30 ++++++++++++++++++++++
include/grub/x86_64/efi/kernel.h | 0
include/grub/xen.h | 5 ++++
12 files changed, 112 insertions(+)
create mode 100644 grub-core/kern/i386/xen/pvh.c
create mode 100644 grub-core/kern/i386/xen/startup_pvh.S
create mode 100644 include/grub/i386/coreboot/kernel.h
create mode 100644 include/grub/i386/efi/kernel.h
create mode 100644 include/grub/i386/ieee1275/kernel.h
create mode 100644 include/grub/i386/xen/kernel.h
create mode 100644 include/grub/i386/xen_pvh/kernel.h
create mode 100644 include/grub/x86_64/efi/kernel.h
diff --git a/grub-core/Makefile.am b/grub-core/Makefile.am
index 04e9395fd..e36c109e2 100644
--- a/grub-core/Makefile.am
+++ b/grub-core/Makefile.am
@@ -102,6 +102,7 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/tsc.h
endif
if COND_i386_efi
+KERNEL_HEADER_FILES += $(top_builddir)/include/grub/machine/kernel.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/efi.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/disk.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/tsc.h
@@ -111,6 +112,7 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/pmtimer.h
endif
if COND_i386_coreboot
+KERNEL_HEADER_FILES += $(top_builddir)/include/grub/machine/kernel.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/tsc.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/coreboot/lbio.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/video.h
@@ -122,6 +124,7 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/acpi.h
endif
if COND_i386_multiboot
+KERNEL_HEADER_FILES += $(top_builddir)/include/grub/machine/kernel.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/tsc.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/acpi.h
endif
@@ -132,6 +135,7 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/tsc.h
endif
if COND_i386_ieee1275
+KERNEL_HEADER_FILES += $(top_builddir)/include/grub/machine/kernel.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/ieee1275/ieee1275.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/terminfo.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/extcmd.h
@@ -140,6 +144,7 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/tsc.h
endif
if COND_i386_xen
+KERNEL_HEADER_FILES += $(top_builddir)/include/grub/machine/kernel.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/xen.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/xen/hypercall.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/terminfo.h
@@ -158,6 +163,7 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/loader.h
endif
if COND_x86_64_efi
+KERNEL_HEADER_FILES += $(top_builddir)/include/grub/machine/kernel.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/efi.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/disk.h
KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/tsc.h
diff --git a/grub-core/kern/i386/xen/pvh.c b/grub-core/kern/i386/xen/pvh.c
new file mode 100644
index 000000000..4f629b15e
--- /dev/null
+++ b/grub-core/kern/i386/xen/pvh.c
@@ -0,0 +1,37 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2018 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/kernel.h>
+#include <grub/misc.h>
+#include <grub/memory.h>
+#include <grub/mm.h>
+#include <grub/xen.h>
+#include <xen/hvm/start_info.h>
+#include <grub/machine/kernel.h>
+
+grub_uint64_t grub_rsdp_addr;
+
+void
+grub_xen_setup_pvh (void)
+{
+}
+
+grub_err_t
+grub_machine_mmap_iterate (grub_memory_hook_t hook, void *hook_data)
+{
+}
diff --git a/grub-core/kern/i386/xen/startup_pvh.S b/grub-core/kern/i386/xen/startup_pvh.S
new file mode 100644
index 000000000..69b8fdcca
--- /dev/null
+++ b/grub-core/kern/i386/xen/startup_pvh.S
@@ -0,0 +1,29 @@
+/* startup.S - bootstrap GRUB itself */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2018 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_pvh.S"
+ .text
+
+/* Saved pointer to start info structure. */
+ .globl pvh_start_info
+pvh_start_info:
+ .long 0
diff --git a/grub-core/kern/xen/init.c b/grub-core/kern/xen/init.c
index a23dad633..782ca7295 100644
--- a/grub-core/kern/xen/init.c
+++ b/grub-core/kern/xen/init.c
@@ -564,6 +564,10 @@ grub_machine_init (void)
+ GRUB_KERNEL_MACHINE_MOD_GAP,
GRUB_KERNEL_MACHINE_MOD_ALIGN);
+#ifdef GRUB_MACHINE_XEN_PVH
+ grub_xen_setup_pvh ();
+#endif
+
grub_xen_setup_gnttab ();
#ifdef GRUB_MACHINE_XEN
diff --git a/grub-core/loader/i386/linux.c b/grub-core/loader/i386/linux.c
index 7d6d5d499..e0825cb21 100644
--- a/grub-core/loader/i386/linux.c
+++ b/grub-core/loader/i386/linux.c
@@ -35,6 +35,7 @@
#include <grub/i18n.h>
#include <grub/lib/cmdline.h>
#include <grub/linux.h>
+#include <grub/machine/kernel.h>
GRUB_MOD_LICENSE ("GPLv3+");
diff --git a/include/grub/i386/coreboot/kernel.h b/include/grub/i386/coreboot/kernel.h
new file mode 100644
index 000000000..e69de29bb
diff --git a/include/grub/i386/efi/kernel.h b/include/grub/i386/efi/kernel.h
new file mode 100644
index 000000000..e69de29bb
diff --git a/include/grub/i386/ieee1275/kernel.h b/include/grub/i386/ieee1275/kernel.h
new file mode 100644
index 000000000..e69de29bb
diff --git a/include/grub/i386/xen/kernel.h b/include/grub/i386/xen/kernel.h
new file mode 100644
index 000000000..e69de29bb
diff --git a/include/grub/i386/xen_pvh/kernel.h b/include/grub/i386/xen_pvh/kernel.h
new file mode 100644
index 000000000..2b7b8a129
--- /dev/null
+++ b/include/grub/i386/xen_pvh/kernel.h
@@ -0,0 +1,30 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2018 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/>.
+ */
+
+#ifndef GRUB_KERNEL_MACHINE_HEADER
+#define GRUB_KERNEL_MACHINE_HEADER 1
+
+#ifndef ASM_FILE
+
+#define GRUB_KERNEL_USE_RSDP_ADDR 1
+
+extern grub_uint64_t EXPORT_VAR(grub_rsdp_addr);
+
+#endif /* ! ASM_FILE */
+
+#endif /* GRUB_KERNEL_MACHINE_HEADER */
diff --git a/include/grub/x86_64/efi/kernel.h b/include/grub/x86_64/efi/kernel.h
new file mode 100644
index 000000000..e69de29bb
diff --git a/include/grub/xen.h b/include/grub/xen.h
index c31cc10c7..91cb7cf81 100644
--- a/include/grub/xen.h
+++ b/include/grub/xen.h
@@ -95,6 +95,11 @@ typedef grub_uint64_t grub_xen_mfn_t;
typedef grub_uint32_t grub_xen_mfn_t;
#endif
typedef unsigned int grub_xen_evtchn_t;
+
+#ifdef GRUB_MACHINE_XEN_PVH
+extern struct hvm_start_info *pvh_start_info;
+void grub_xen_setup_pvh (void);
+#endif
#endif
#endif
--
2.21.0
|
