From 21d8017aceb83fc32492db906ae7b4c139508a57 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Fri, 7 Dec 2018 13:11:37 +0100 Subject: [PATCH] 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 Reviewed-by: Daniel Kiper Tested-by: Hans van Kranenburg --- 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 c567b5eb8..d7d7a80d0 100644 --- a/grub-core/Makefile.am +++ b/grub-core/Makefile.am @@ -103,6 +103,7 @@ 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 @@ -112,6 +113,7 @@ 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/coreboot/lbio.h KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/video.h @@ -123,6 +125,7 @@ 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 @@ -133,6 +136,7 @@ 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 @@ -141,6 +145,7 @@ 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 @@ -159,6 +164,7 @@ 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 . + */ + +#include +#include +#include +#include +#include +#include +#include + +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 . + */ + +#include +#include + + .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 9479ef0ed..be746ce74 100644 --- a/grub-core/loader/i386/linux.c +++ b/grub-core/loader/i386/linux.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include 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 . + */ + +#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