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hv: Prepare trampline.S trampoline code relocation

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in real mode part, add extra pointers for page tables and long jump buffer
so it's possible for HV code to patch the relocation offset

in long mode part, use absolute addressing when referring HV symbols,
and use relative addressing for symbols within trampoline code

Signed-off-by: Zheng, Gen <gen.zheng@intel.com>
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
This commit is contained in:
Zide Chen
2018-05-02 23:09:19 -07:00
committed by lijinxia
parent 77580edff0
commit 40c8c4d3c3
3 changed files with 29 additions and 8 deletions
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2
hypervisor/bsp/ld/link_ram.ld.in
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@@ -5,7 +5,7 @@ ENTRY(cpu_primary_start_32)
MEMORY
{
/* Low 1MB of memory for secondary processor start-up */
lowram : ORIGIN = CONFIG_LOW_RAM_START, LENGTH = CONFIG_LOW_RAM_SIZE
lowram : ORIGIN = 0, LENGTH = CONFIG_LOW_RAM_SIZE
/* 32 MBytes of RAM for HV */
ram : ORIGIN = CONFIG_RAM_START, LENGTH = CONFIG_RAM_SIZE