From: Stefan Berger <stefanb@linux.ibm.com>
To: grub-devel@gnu.org
Cc: dkiper@net-space.pl, Stefan Berger <stefanb@linux.ibm.com>,
Hari Bathini <hbathini@linux.ibm.com>,
Pavithra Prakash <pavrampu@in.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Carolyn Scherrer <cpscherr@us.ibm.com>,
Mahesh Salgaonkar <mahesh@linux.ibm.com>,
Sourabh Jain <sourabhjain@linux.ibm.com>
Subject: [PATCH 6/9] kern/ieee1275/init: ppc64: Implement alloc_mem_restricted
Date: Tue, 31 Oct 2023 13:50:28 -0400 [thread overview]
Message-ID: <20231031175031.370824-7-stefanb@linux.ibm.com> (raw)
In-Reply-To: <20231031175031.370824-1-stefanb@linux.ibm.com>
Implement alloc_mem_restricted that uses regions_claim() for memory
allocation. The ieee1275 loader will use this function on PowerVM
and PowerKVM and thus avoid usage of memory that it is not allowed
to use.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pavithra Prakash <pavrampu@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Carolyn Scherrer <cpscherr@us.ibm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>
---
grub-core/kern/ieee1275/init.c | 7 +++++++
include/grub/powerpc/ieee1275/alloc.h | 3 +++
2 files changed, 10 insertions(+)
diff --git a/grub-core/kern/ieee1275/init.c b/grub-core/kern/ieee1275/init.c
index 542a4c595..6a3532aa7 100644
--- a/grub-core/kern/ieee1275/init.c
+++ b/grub-core/kern/ieee1275/init.c
@@ -585,6 +585,13 @@ region_claim (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
return ret;
}
+int
+alloc_mem_restricted (grub_uint64_t addr, grub_uint64_t len, grub_memory_type_t type,
+ void *ctx)
+{
+ return regions_claim (addr, len, type, ctx);
+}
+
static grub_err_t
grub_ieee1275_mm_add_region (grub_size_t size, unsigned int flags)
{
diff --git a/include/grub/powerpc/ieee1275/alloc.h b/include/grub/powerpc/ieee1275/alloc.h
index 6bfd3d986..14e37908e 100644
--- a/include/grub/powerpc/ieee1275/alloc.h
+++ b/include/grub/powerpc/ieee1275/alloc.h
@@ -14,4 +14,7 @@ struct regions_claim_request {
grub_size_t align; /* alignment restrictions */
};
+int EXPORT_FUNC(alloc_mem_restricted) (grub_uint64_t addr, grub_uint64_t len,
+ grub_memory_type_t type, void *ctx);
+
#endif /* GRUB_POWERPC_IEEE1275_ALLOC_HEADER */
--
2.25.1
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next prev parent reply other threads:[~2023-10-31 17:51 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-31 17:50 [PATCH 0/9] ppc64: Restrict memory allocations for kernel and initrd Stefan Berger
2023-10-31 17:50 ` [PATCH 1/9] kern/ieee1275/init: ppc64: Introduce a request for regions_claim Stefan Berger
2023-11-08 16:00 ` Daniel Kiper
2023-11-08 16:05 ` Daniel Kiper
2023-11-10 13:06 ` Hari Bathini
2023-10-31 17:50 ` [PATCH 2/9] kern/ieee1275/init: ppc64: Decide by request whether to initialize region Stefan Berger
2023-10-31 17:50 ` [PATCH 3/9] kern/ieee1275/init: ppc64: Return allocated address and len using context Stefan Berger
2023-11-10 13:07 ` Hari Bathini
2023-10-31 17:50 ` [PATCH 4/9] kern/ieee1275/init: ppc64: Check early for sufficiently large chunk Stefan Berger
2023-11-08 16:11 ` Daniel Kiper
2023-11-08 17:52 ` Stefan Berger
2023-10-31 17:50 ` [PATCH 5/9] kern/ieee1275/init: ppc64: Add support for alignment requirements Stefan Berger
2023-11-10 13:09 ` Hari Bathini
2023-11-10 14:23 ` Stefan Berger
2023-11-10 14:56 ` Stefan Berger
2023-10-31 17:50 ` Stefan Berger [this message]
2023-11-10 13:09 ` [PATCH 6/9] kern/ieee1275/init: ppc64: Implement alloc_mem_restricted Hari Bathini
2023-11-10 13:18 ` Daniel Kiper
2023-11-10 14:26 ` Stefan Berger
2023-11-10 15:51 ` Stefan Berger
2023-11-10 14:25 ` Stefan Berger
2023-10-31 17:50 ` [PATCH 7/9] kern/ieee1275/cmain: ppc64: Introduce flags to identify Power VM and KVM Stefan Berger
2023-10-31 17:50 ` [PATCH 8/9] loader/powerpc/ieee1275: Use new allocation function for kernel and initrd Stefan Berger
2023-10-31 17:50 ` [PATCH 9/9] kern/ieee1275/ieee1275.c: debug: Display successful memory claims Stefan Berger
2023-11-08 16:20 ` [PATCH 0/9] ppc64: Restrict memory allocations for kernel and initrd Daniel Kiper
2023-11-08 17:53 ` Stefan Berger
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