add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/x86/include/asm/boot.h
..
..
@@ -24,9 +24,16 @@
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 # error "Invalid value for CONFIG_PHYSICAL_ALIGN"
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 #endif
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-#ifdef CONFIG_KERNEL_BZIP2
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+#if defined(CONFIG_KERNEL_BZIP2)
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 # define BOOT_HEAP_SIZE		0x400000
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-#else /* !CONFIG_KERNEL_BZIP2 */
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+#elif defined(CONFIG_KERNEL_ZSTD)
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+/*
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+ * Zstd needs to allocate the ZSTD_DCtx in order to decompress the kernel.
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+ * The ZSTD_DCtx is ~160KB, so set the heap size to 192KB because it is a
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+ * round number and to allow some slack.
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+ */
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+# define BOOT_HEAP_SIZE		 0x30000
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+#else
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 # define BOOT_HEAP_SIZE		 0x10000
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 #endif
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