From: Juergen Gross <jgross@suse.com> To: grub-devel@gnu.org Cc: hans@knorrie.org, phcoder@gmail.com, daniel.kiper@oracle.com, Juergen Gross <jgross@suse.com>, xen-devel@lists.xen.org Subject: [PATCH v4 02/19] loader/linux: support passing rsdp address via boot params Date: Fri, 2 Nov 2018 13:37:21 +0100 [thread overview] Message-ID: <20181102123738.16395-3-jgross@suse.com> (raw) In-Reply-To: <20181102123738.16395-1-jgross@suse.com> Xen PVH guests will have the RSDP at an arbitrary address. Support that by passing the RSDP address via the boot parameters to Linux. The new protocol version 2.14 requires to set version to 0x8000 ored with the actually use protocol version (the minimum of the kernel supplied protocol version and the grub2 supported protocol version) if 2.14 or higher are in effect. Signed-off-by: Juergen Gross <jgross@suse.com> --- V2: add oring 0x8000 to version field V3: move including machine/kernel.h to patch 8 (Daniel Kiper) --- grub-core/loader/i386/linux.c | 8 ++++++++ include/grub/i386/linux.h | 5 ++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/grub-core/loader/i386/linux.c b/grub-core/loader/i386/linux.c index 4eab55a2d..51920896e 100644 --- a/grub-core/loader/i386/linux.c +++ b/grub-core/loader/i386/linux.c @@ -750,6 +750,14 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), prot_init_space = page_align (prot_size) * 3; } +#ifdef GRUB_KERNEL_USE_RSDP_ADDR + if (grub_le_to_cpu16 (lh.version) >= 0x020e) + lh.acpi_rsdp_addr = grub_le_to_cpu64 (grub_rsdp_addr); +#endif + + if (grub_le_to_cpu16 (lh.version) >= 0x020e) + lh.version = grub_le_to_cpu16 (LINUX_LOADER_VERSION_TAG | 0x020e); + if (allocate_pages (prot_size, &align, min_align, relocatable, preferred_address)) diff --git a/include/grub/i386/linux.h b/include/grub/i386/linux.h index 60c7c3b5e..5cbcfbe5a 100644 --- a/include/grub/i386/linux.h +++ b/include/grub/i386/linux.h @@ -87,7 +87,7 @@ enum GRUB_VIDEO_LINUX_TYPE_SIMPLE = 0x70 /* Linear framebuffer without any additional functions. */ }; -/* For the Linux/i386 boot protocol version 2.10. */ +/* For the Linux/i386 boot protocol version 2.14. */ struct linux_i386_kernel_header { grub_uint8_t code1[0x0020]; @@ -105,6 +105,7 @@ struct linux_i386_kernel_header grub_uint16_t jump; /* Jump instruction */ grub_uint32_t header; /* Magic signature "HdrS" */ grub_uint16_t version; /* Boot protocol version supported */ +#define LINUX_LOADER_VERSION_TAG 0x8000 grub_uint32_t realmode_swtch; /* Boot loader hook */ grub_uint16_t start_sys; /* The load-low segment (obsolete) */ grub_uint16_t kernel_version; /* Points to kernel version string */ @@ -142,6 +143,8 @@ struct linux_i386_kernel_header grub_uint64_t setup_data; grub_uint64_t pref_address; grub_uint32_t init_size; + grub_uint32_t handover_offset; + grub_uint64_t acpi_rsdp_addr; } GRUB_PACKED; /* Boot parameters for Linux based on 2.6.12. This is used by the setup -- 2.16.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
WARNING: multiple messages have this Message-ID (diff)
From: Juergen Gross <jgross@suse.com> To: grub-devel@gnu.org Cc: xen-devel@lists.xen.org, phcoder@gmail.com, daniel.kiper@oracle.com, hans@knorrie.org, Juergen Gross <jgross@suse.com> Subject: [PATCH v4 02/19] loader/linux: support passing rsdp address via boot params Date: Fri, 2 Nov 2018 13:37:21 +0100 [thread overview] Message-ID: <20181102123738.16395-3-jgross@suse.com> (raw) In-Reply-To: <20181102123738.16395-1-jgross@suse.com> Xen PVH guests will have the RSDP at an arbitrary address. Support that by passing the RSDP address via the boot parameters to Linux. The new protocol version 2.14 requires to set version to 0x8000 ored with the actually use protocol version (the minimum of the kernel supplied protocol version and the grub2 supported protocol version) if 2.14 or higher are in effect. Signed-off-by: Juergen Gross <jgross@suse.com> --- V2: add oring 0x8000 to version field V3: move including machine/kernel.h to patch 8 (Daniel Kiper) --- grub-core/loader/i386/linux.c | 8 ++++++++ include/grub/i386/linux.h | 5 ++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/grub-core/loader/i386/linux.c b/grub-core/loader/i386/linux.c index 4eab55a2d..51920896e 100644 --- a/grub-core/loader/i386/linux.c +++ b/grub-core/loader/i386/linux.c @@ -750,6 +750,14 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), prot_init_space = page_align (prot_size) * 3; } +#ifdef GRUB_KERNEL_USE_RSDP_ADDR + if (grub_le_to_cpu16 (lh.version) >= 0x020e) + lh.acpi_rsdp_addr = grub_le_to_cpu64 (grub_rsdp_addr); +#endif + + if (grub_le_to_cpu16 (lh.version) >= 0x020e) + lh.version = grub_le_to_cpu16 (LINUX_LOADER_VERSION_TAG | 0x020e); + if (allocate_pages (prot_size, &align, min_align, relocatable, preferred_address)) diff --git a/include/grub/i386/linux.h b/include/grub/i386/linux.h index 60c7c3b5e..5cbcfbe5a 100644 --- a/include/grub/i386/linux.h +++ b/include/grub/i386/linux.h @@ -87,7 +87,7 @@ enum GRUB_VIDEO_LINUX_TYPE_SIMPLE = 0x70 /* Linear framebuffer without any additional functions. */ }; -/* For the Linux/i386 boot protocol version 2.10. */ +/* For the Linux/i386 boot protocol version 2.14. */ struct linux_i386_kernel_header { grub_uint8_t code1[0x0020]; @@ -105,6 +105,7 @@ struct linux_i386_kernel_header grub_uint16_t jump; /* Jump instruction */ grub_uint32_t header; /* Magic signature "HdrS" */ grub_uint16_t version; /* Boot protocol version supported */ +#define LINUX_LOADER_VERSION_TAG 0x8000 grub_uint32_t realmode_swtch; /* Boot loader hook */ grub_uint16_t start_sys; /* The load-low segment (obsolete) */ grub_uint16_t kernel_version; /* Points to kernel version string */ @@ -142,6 +143,8 @@ struct linux_i386_kernel_header grub_uint64_t setup_data; grub_uint64_t pref_address; grub_uint32_t init_size; + grub_uint32_t handover_offset; + grub_uint64_t acpi_rsdp_addr; } GRUB_PACKED; /* Boot parameters for Linux based on 2.6.12. This is used by the setup -- 2.16.4
next prev parent reply other threads:[~2018-11-02 12:37 UTC|newest] Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-11-02 12:37 [PATCH v4 00/19] xen: add pvh guest support Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-02 12:37 ` [PATCH v4 01/19] xen: add some xen headers Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-02 12:37 ` Juergen Gross [this message] 2018-11-02 12:37 ` [PATCH v4 02/19] loader/linux: support passing rsdp address via boot params Juergen Gross 2018-11-07 11:36 ` Daniel Kiper 2018-11-07 11:36 ` Daniel Kiper 2018-11-02 12:37 ` [PATCH v4 03/19] xen: carve out grant tab initialization into dedicated function Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-02 12:37 ` [PATCH v4 04/19] xen: prepare common code for Xen PVH support Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-07 12:10 ` Daniel Kiper 2018-11-07 12:10 ` Daniel Kiper 2018-11-02 12:37 ` [PATCH v4 05/19] xen: add some dummy headers for PVH mode Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-07 12:21 ` Daniel Kiper 2018-11-07 12:21 ` Daniel Kiper 2018-11-07 14:49 ` Juergen Gross 2018-11-08 15:36 ` Daniel Kiper 2018-11-08 15:36 ` Daniel Kiper 2018-11-08 15:40 ` Juergen Gross 2018-11-08 15:40 ` Juergen Gross 2018-11-07 14:49 ` Juergen Gross 2018-11-02 12:37 ` [PATCH v4 06/19] xen: rearrange xen/init.c to prepare it for Xen " Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-02 12:37 ` [PATCH v4 07/19] xen: add PVH specific defines to offset.h Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-07 12:27 ` Daniel Kiper 2018-11-07 12:27 ` Daniel Kiper 2018-11-02 12:37 ` [PATCH v4 08/19] xen: add basic hooks for PVH in current code Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-08 15:45 ` Daniel Kiper 2018-11-08 19:23 ` [Xen-devel] " Juergen Gross 2018-11-09 17:55 ` Daniel Kiper 2018-11-09 17:55 ` Daniel Kiper 2018-11-08 19:23 ` Juergen Gross 2018-11-08 15:45 ` Daniel Kiper 2018-11-02 12:37 ` [PATCH v4 09/19] xen: add PVH boot entry code Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-08 15:53 ` Daniel Kiper 2018-11-08 15:53 ` Daniel Kiper 2018-11-02 12:37 ` [PATCH v4 10/19] xen: setup hypercall page for PVH Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-09 18:12 ` Daniel Kiper 2018-11-09 18:12 ` Daniel Kiper 2018-11-20 9:27 ` Juergen Gross 2018-11-20 9:27 ` Juergen Gross 2018-11-21 13:58 ` Juergen Gross 2018-11-21 13:58 ` [Xen-devel] " Juergen Gross 2018-11-15 8:33 ` Roger Pau Monné 2018-11-20 9:16 ` Juergen Gross 2018-11-20 9:16 ` Juergen Gross 2018-11-15 8:33 ` Roger Pau Monné 2018-11-02 12:37 ` [PATCH v4 11/19] xen: get memory map from hypervisor " Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-09 18:35 ` Daniel Kiper 2018-11-09 18:35 ` Daniel Kiper 2018-11-15 9:36 ` [Xen-devel] " Roger Pau Monné 2018-11-21 8:52 ` Juergen Gross 2018-11-21 8:52 ` Juergen Gross 2018-11-15 9:36 ` Roger Pau Monné 2018-11-02 12:37 ` [PATCH v4 12/19] xen: add PCI MMIO areas to memory map Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-09 19:14 ` Daniel Kiper 2018-11-14 12:49 ` Roger Pau Monné 2018-11-14 12:49 ` [Xen-devel] " Roger Pau Monné 2018-11-14 15:30 ` Daniel Kiper 2018-11-14 15:30 ` Daniel Kiper 2018-11-09 19:14 ` Daniel Kiper 2018-11-14 12:48 ` Roger Pau Monné 2018-11-14 12:48 ` [Xen-devel] " Roger Pau Monné 2018-11-21 9:02 ` Juergen Gross 2018-11-21 9:02 ` Juergen Gross 2018-11-02 12:37 ` [PATCH v4 13/19] xen: setup Xen specific data for PVH Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-09 19:47 ` Daniel Kiper 2018-11-09 19:47 ` Daniel Kiper 2018-11-15 10:03 ` [Xen-devel] " Roger Pau Monné 2018-11-21 9:07 ` Juergen Gross 2018-11-21 9:07 ` Juergen Gross 2018-11-15 10:03 ` Roger Pau Monné 2018-11-02 12:37 ` [PATCH v4 14/19] xen: init memory regions " Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-09 19:56 ` Daniel Kiper 2018-11-09 19:56 ` Daniel Kiper 2018-11-15 10:07 ` Roger Pau Monné 2018-11-15 10:07 ` [Xen-devel] " Roger Pau Monné 2018-11-02 12:37 ` [PATCH v4 15/19] xen_pvh: add build runes for grub-core Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-02 12:37 ` [PATCH v4 16/19] grub-module-verifier: Ignore all_video for xenpvh Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-02 12:37 ` [PATCH v4 17/19] xen_pvh: support building a standalone image Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-09 20:06 ` Daniel Kiper 2018-11-09 20:06 ` Daniel Kiper 2018-11-02 12:37 ` [PATCH v4 18/19] xen_pvh: support grub-install for xen_pvh Juergen Gross 2018-11-02 12:37 ` Juergen Gross 2018-11-02 12:37 ` [PATCH v4 19/19] xen_pvh: add support to configure Juergen Gross 2018-11-02 12:37 ` Juergen Gross
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20181102123738.16395-3-jgross@suse.com \ --to=jgross@suse.com \ --cc=daniel.kiper@oracle.com \ --cc=grub-devel@gnu.org \ --cc=hans@knorrie.org \ --cc=phcoder@gmail.com \ --cc=xen-devel@lists.xen.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.