robin.thoni/ipxe - git rthoni.com

Commit Graph

Author	SHA1	Message	Date
Michael Brown	12f203c606	[PXE] Add PMM support to romprefix.S (untested) ROM initialisation vector now attempts to allocate a 2MB block using PMM. If successful, it copies the ROM image to this block, then shrinks the ROM image to allow for more option ROMs. If unsuccessful, it leaves the ROM as-is. ROM BEV now attempts to return to the BIOS, resorting to INT 18 only if the BIOS stack has been corrupted.	16 years ago
Michael Brown	b8a8eea850	Minor refactoring to eliminate duplication.	16 years ago
Michael Brown	dec325fe43	Use full protected mode for access to high memory within prefix, to work around limitations in real-mode virtualisation support on Intel VT-capable chips.	16 years ago
Michael Brown	2cfe0dee1f	Don't trash the %ecx value returned by relocate(). This was causing us to round down the size for the relocation copy to the nearest 64kB (+0x10 bytes); this just happened to work on most machines because the last 64kB of the image is all-zeroes anyway (it's the .bss).	17 years ago
Michael Brown	c94cdf2b7d	Move .zinfo to libprefix.S; it doesn't belong with the decompression code.	17 years ago
Michael Brown	048bbeeebc	Compressed ROM images now work.	17 years ago
Michael Brown	ab859a5355	Use a single _payload_offset linker-defined variable to locate the start of the non-prefix blocks in the loaded image, and rely on the image ordering. This should make introducing compression much easier.	17 years ago
Michael Brown	dca369ddc3	Call hide_etherboot() from startup(), rather than requiring the prefix to do it.	17 years ago
Michael Brown	86171c53f4	Damn Broadcom and their damned incorrect assumptions about x86 memory allocation.	17 years ago
Michael Brown	6abfaa153b	Towards making KEEP_IT_REAL work again. Fix bug that caused over-allocation of .text16 and .data16 memory areas by a factor of 16.	18 years ago
Michael Brown	e7eca7b7cb	Code segment may not be writable; create the temporary pointer to the GDT on the stack.	18 years ago
Michael Brown	041a04335e	Fixed assembly on old versions of gas	18 years ago
Michael Brown	89da833c5d	init_librm() and prot_call() are now real-mode far calls. install() now calls relocate(), moves the protected-mode code to the new location, and calls hide_etherboot().	18 years ago
Michael Brown	832807726a	Add infrastructure to support access to .data16 (and .text16) variables from protected-mode code. Set up %ds to point to .data16 in prot_to_real, so that code specified via REAL_EXEC() and friends can access variables in .data16. Move most real-mode librm variables from .text16 to .data16.	18 years ago
Michael Brown	cc23057b59	Typo	18 years ago
Michael Brown	10c28a51bd	Create two easy-to-use entry points in libprefix: install and install_prealloc. I think these will suffice for all the 16-bit prefixes.	18 years ago
Michael Brown	5463169c1a	Verified as working	18 years ago
Michael Brown	d081d65d48	This should be much more elegant: we use flat real mode for the highmem data, so decompress16 will be able to unpack blocks bigger than 64kB.	18 years ago
Michael Brown	cc8821a443	Checking in because I don't want to lose this rather neat code for running the decompresser in 16:16 protected mode using the real-mode stack. However, there's an even simpler way to do it...	18 years ago

19 Commits (12f203c606422979f46a0fb4bea66a00612a317c)