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vm_session(x86): support cstar register

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Fixes #3964
This commit is contained in:
Alexander Boettcher
2020-11-28 22:05:47 +01:00
committed by Norman Feske
parent 9189342b77
commit c5de2acf57
12 changed files with 37 additions and 14 deletions
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5
repos/base-nova/include/nova/syscall-generic.h
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@@ -566,6 +566,7 @@ namespace Nova {
mword_t cr8, efer;
unsigned long long star;
unsigned long long lstar;
unsigned long long cstar;
unsigned long long fmask;
unsigned long long kernel_gs_base;
unsigned tpr;
@@ -625,6 +626,8 @@ namespace Nova {
inline void write_star(mword_t value) { star = value; }
inline mword_t read_lstar() { return lstar; }
inline void write_lstar(mword_t value) { lstar = value; }
inline mword_t read_cstar() { return cstar; }
inline void write_cstar(mword_t value) { cstar = value; }
inline mword_t read_fmask() { return fmask; }
inline void write_fmask(mword_t value) { fmask = value; }
inline mword_t read_kernel_gs_base() { return kernel_gs_base; }
@@ -656,6 +659,8 @@ namespace Nova {
inline void write_star(mword_t) { }
inline mword_t read_lstar() { return 0UL; }
inline void write_lstar(mword_t) { }
inline mword_t read_cstar() { return 0UL; }
inline void write_cstar(mword_t) { }
inline mword_t read_fmask() { return 0UL; }
inline void write_fmask(mword_t) { }
inline mword_t read_kernel_gs_base() { return 0UL; }