68 lines
2.4 KiB
Diff
68 lines
2.4 KiB
Diff
From ad6d8f5063a272e2f1e4857751db70058b977239 Mon Sep 17 00:00:00 2001
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From: Eric Snowberg <eric.snowberg@oracle.com>
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Date: Mon, 26 Feb 2018 17:34:18 -0800
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Subject: [PATCH] ieee1275: block-size deblocker support method
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IEEE Std 1275-1994 Standard for Boot (Initialization Configuration)
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Firmware: Core Requirements and Practices
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3.8.3 deblocker support package
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Any package that uses the "deblocker" support package must define
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the following method, which the deblocker uses as a low-level
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interface to the device
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block-size ( -- block-len ) Return "granularity" for accesses to this
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device.
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Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/kern/ieee1275/ieee1275.c | 23 +++++++++++++++++++++++
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include/grub/ieee1275/ieee1275.h | 1 +
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2 files changed, 24 insertions(+)
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diff --git a/grub-core/kern/ieee1275/ieee1275.c b/grub-core/kern/ieee1275/ieee1275.c
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index cd2dead832d..86f81a3c467 100644
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--- a/grub-core/kern/ieee1275/ieee1275.c
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+++ b/grub-core/kern/ieee1275/ieee1275.c
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@@ -784,3 +784,26 @@ grub_ieee1275_no_data_command (grub_ieee1275_ihandle_t ihandle,
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return args.catch_result;
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}
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+
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+int
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+grub_ieee1275_get_block_size (grub_ieee1275_ihandle_t ihandle)
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+{
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+ struct size_args_ieee1275
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+ {
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+ struct grub_ieee1275_common_hdr common;
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+ grub_ieee1275_cell_t method;
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+ grub_ieee1275_cell_t ihandle;
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+ grub_ieee1275_cell_t result;
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+ grub_ieee1275_cell_t size;
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+ } args;
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+
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+ INIT_IEEE1275_COMMON (&args.common, "call-method", 2, 2);
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+ args.method = (grub_ieee1275_cell_t) "block-size";
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+ args.ihandle = ihandle;
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+ args.result = 1;
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+
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+ if ((IEEE1275_CALL_ENTRY_FN (&args) == -1) || (args.result))
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+ return 0;
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+
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+ return args.size;
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+}
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diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
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index 6dfb57b8bf8..d0dc2746ead 100644
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--- a/include/grub/ieee1275/ieee1275.h
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+++ b/include/grub/ieee1275/ieee1275.h
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@@ -228,6 +228,7 @@ char *EXPORT_FUNC(grub_ieee1275_encode_uint4) (grub_ieee1275_ihandle_t ihandle,
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grub_uint32_t lun_lo,
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grub_uint32_t lun_hi,
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grub_size_t *size);
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+int EXPORT_FUNC(grub_ieee1275_get_block_size) (grub_ieee1275_ihandle_t ihandle);
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grub_err_t EXPORT_FUNC(grub_claimmap) (grub_addr_t addr, grub_size_t size);
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