openslx-ng/ipxe.git/src/arch/x86_64/include, branch master

[build] Prevent use of MMX and SSE registers

2018-03-20T20:01:08+00:00

The existence of MMX and SSE is required by the System V x86_64 ABI and so is assumed by gcc, but these registers are not preserved by our own interrupt handlers and are unlikely to be preserved by other context switch handlers in a boot firmware environment. Explicitly prevent gcc from using MMX or SSE registers to avoid potential problems due to silent register corruption. We must remove the %xmm0-%xmm5 clobbers from the x86_64 version of hv_call() since otherwise gcc will complain about unknown register names. Theoretically, we should probably add code to explicitly preserve the %xmm0-%xmm5 registers across a hypercall, in order to guarantee to external code that these registers remain unchanged. In practice this is difficult since SSE registers are disabled by default: for background information see commits 71560d1 ("[librm] Preserve FPU, MMX and SSE state across calls to virt_call()") and dd9a14d ("[librm] Conditionalize the workaround for the Tivoli VMM's SSE garbling"). Signed-off-by: Michael Brown

[legal] Add missing FILE_LICENCE declarations

2017-12-29T11:57:00+00:00

Add missing FILE_LICENCE declarations to x86_64 headers based on the corresponding i386 headers (from which the x86_64 headers were originally derived). Signed-off-by: Michael Brown

[dhcp] Automatically generate vendor class identifier string

2016-07-04T14:07:05+00:00

The vendor class identifier strings in DHCP_ARCH_VENDOR_CLASS_ID are out of sync with the (correct) client architecture values in DHCP_ARCH_CLIENT_ARCHITECTURE. Fix by removing all definitions of DHCP_ARCH_VENDOR_CLASS_ID, and instead generating the vendor class identifier string automatically based on DHCP_ARCH_CLIENT_ARCHITECTURE and DHCP_ARCH_CLIENT_NDI. Signed-off-by: Michael Brown

[dhcp] Allow for variable encapsulation of architecture-specific options

2016-07-04T12:15:05+00:00

DHCPv4 and DHCPv6 share some values in common for the architecture- specific options (such as the client system architecture type), but use different encapsulations: DHCPv4 has a single byte for the option length while DHCPv6 has a 16-bit field for the option length. Move the containing DHCP_OPTION() and related wrappers from the individual dhcp_arch.h files to dhcp.c, thus allowing for the architecture-specific values to be reused in dhcpv6.c. Signed-off-by: Michael Brown

[gdb] Add support for x86_64

2016-03-22T08:44:32+00:00

Signed-off-by: Michael Brown

[hyperv] Use generic set_bit() function

2016-03-16T22:33:41+00:00

Signed-off-by: Michael Brown

[librm] Provide an abstraction wrapper for prot_call

2016-02-18T23:23:38+00:00

Signed-off-by: Michael Brown

[bios] Add bin-x86_64-pcbios build platform

2016-02-16T19:32:32+00:00

Move most arch/i386 files to arch/x86, and adjust the contents of the Makefiles and the include/bits/*.h headers to reflect the new locations. This patch makes no substantive code changes, as can be seen using a rename-aware diff (e.g. "git show -M5"). This patch does not make the pcbios platform functional for x86_64; it merely allows it to compile without errors. Signed-off-by: Michael Brown

[libc] Add x86_64 versions of setjmp() and longjmp()

2015-04-07T05:40:42+00:00

None of the x86_64 builds currently have any way of invoking these functions. They are included only to avoid introducing unnecessary architecture-specific dependencies into the self-test suite. Signed-off-by: Michael Brown

[libc] Add ffs(), ffsl(), and ffsll()

2015-03-16T15:40:53+00:00

Signed-off-by: Michael Brown